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WO2025036255A1 - Accessoire pour dispositif électronique, boîtier, dispositif de communication et système de communication - Google Patents

Accessoire pour dispositif électronique, boîtier, dispositif de communication et système de communication Download PDF

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Publication number
WO2025036255A1
WO2025036255A1 PCT/CN2024/110799 CN2024110799W WO2025036255A1 WO 2025036255 A1 WO2025036255 A1 WO 2025036255A1 CN 2024110799 W CN2024110799 W CN 2024110799W WO 2025036255 A1 WO2025036255 A1 WO 2025036255A1
Authority
WO
WIPO (PCT)
Prior art keywords
radiator
accessory
antenna
electronic device
antenna radiator
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/CN2024/110799
Other languages
English (en)
Chinese (zh)
Inventor
孙利滨
唐润东
王汉阳
邓绍刚
石小红
叶建波
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Publication of WO2025036255A1 publication Critical patent/WO2025036255A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/27—Adaptation for use in or on movable bodies
    • H01Q1/32—Adaptation for use in or on road or rail vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30—Arrangements for providing operation on different wavebands

Definitions

  • the embodiments of the present application relate to the field of communication technology, and specifically to an accessory, a housing, a communication device, and a communication system for an electronic device.
  • Mobile phones and other electronic devices are generally equipped with antenna radiators, which can be used for wireless communication with satellites or communication base stations.
  • antenna radiators which can be used for wireless communication with satellites or communication base stations.
  • the communication gain and beam angle of the antenna radiator are low, resulting in poor communication quality.
  • the embodiments of the present application provide an accessory, a housing, a communication device and a communication system for an electronic device, which can increase the gain and beam angle and improve the communication quality.
  • an embodiment of the present application provides an accessory for an electronic device, the accessory comprising: an accessory radiator and a radio frequency connector, the accessory radiator being configured to be spaced apart from an antenna radiator of the electronic device and to couple signals from the antenna radiator; the radio frequency connector being coupled to the accessory radiator, the radio frequency connector being configured to be connected to an external antenna.
  • the interval between the accessory radiator and the antenna radiator of the electronic device is set, and the signal is coupled from the antenna radiator, that is, the antenna radiator couples the signal to the accessory radiator, the RF connector is coupled and connected to the accessory radiator, and the RF connector is connected to the external antenna;
  • the accessory allows the electronic device to transmit or receive signals externally through the external antenna, and the external antenna has a larger gain and beam angle, thereby increasing the gain and angle of the electronic device and improving the communication quality.
  • the length of the accessory radiator is about 1/2 ⁇ 1/8 of the medium working wavelength.
  • the medium working wavelength corresponds to the working frequency of the antenna radiator of the electronic device, for example, the center frequency of the working frequency band.
  • the length of the accessory radiator is 30mm-75mm. In this way, the working frequency band of the accessory radiator covers the commonly used cellular communication and satellite communication frequency bands, and the working frequency band covers a wide range.
  • the antenna radiator is used to generate a first resonance, and the first resonance covers a satellite transmission frequency band or a satellite reception frequency band.
  • the satellite transmission frequency band includes a 2 GHz frequency or
  • the satellite reception frequency band includes a 2.2 GHz frequency.
  • the transmission frequency (TX) includes 2 GHz
  • the reception frequency band (RX) includes 2.2 GHz
  • the operating frequency band may cover the Tiantong satellite frequency band.
  • the length of the accessory radiator can be 35 mm to 55 mm.
  • the accessory radiator can couple the signal of the working frequency band of the antenna radiator, such as the Tiantong satellite frequency band.
  • the accessory further includes a dielectric plate
  • the accessory radiator is stacked on the dielectric plate
  • the dielectric plate is configured to be disposed between the accessory radiator and the antenna radiator.
  • the dielectric plate can carry the accessory radiator to facilitate the manufacture and installation of the accessory radiator.
  • an installation groove may be provided on the inner side of the shell side plate, and the medium plate may be provided in the installation groove so that the inner wall of the accommodating groove is roughly flat.
  • the length of the accessory radiator is greater than the length of the antenna radiator. Since the space between the accessory radiator and the antenna radiator has a certain dielectric constant, such as the structure, housing, dielectric plate, etc. inside the electronic device, all have a certain dielectric constant, by making the length of the accessory radiator greater than the length of the antenna radiator, the electrical length of the accessory radiator can be made substantially equal to the electrical length of the antenna radiator, thereby avoiding the influence of the above dielectric constant.
  • the accessory radiator and the antenna radiator both extend in the first direction
  • the accessory radiator includes a first end and a second end
  • the antenna radiator includes a third end and a fourth end, the first end is close to the third end relative to the second end; the first end and the third end are spaced apart along the first direction.
  • the electric field strength point of the antenna radiator and the electric field strength point of the accessory radiator are staggered along the first direction, and the third end is close to the center of the accessory radiator, so that magneto-electric coupling is formed between the third end and the accessory radiator corresponding thereto, thereby weakening the energy storage field between the antenna radiator and the accessory radiator, making it easier for the signal to couple into the accessory radiator, thereby reducing the signal between the antenna radiator and the accessory radiator. loss.
  • the minimum distance between the first end and the third end along the first direction is greater than 3mm.
  • the minimum distance between the first end and the third end along the first direction is greater than 3mm (such as 4mm, 5mm, 10mm, 15mm, 20mm, etc.).
  • the isolation between the antenna radiator and the accessory radiator is close to -5.6dB (loss is 5.6dB).
  • the loss is less than or equal to 5dB, the effect of the loss on the communication quality is almost negligible.
  • the signal coupling between the antenna radiator and the accessory radiator is good. Therefore, by making the minimum distance between the first end and the third end along the first direction greater than 3mm, it can be ensured that the signal loss between the antenna radiator and the accessory radiator is less than 5dB, further reducing the signal loss and improving the communication quality.
  • the accessory radiator includes a first accessory radiator and a second accessory radiator spaced apart along a first direction, and an end of the first accessory radiator close to the second accessory radiator and an end of the second accessory radiator close to the first accessory radiator are coupled to the RF connector. This arrangement facilitates the connection between the accessory radiator and the RF connector.
  • the second end and the fourth end are arranged to be spaced apart along the first direction.
  • another electric field strength point (fourth end) of the antenna radiator and another electric field strength point (second end) of the accessory radiator are staggered along the first direction, which can further weaken the energy storage field between the antenna radiator and the accessory radiator, and further reduce the signal loss between the antenna radiator and the accessory radiator.
  • the projection of the second end on the preset plane falls on the projection of the antenna radiator on the preset plane.
  • another electric field strength point (second end) of the accessory radiator and another electric field strength point (fourth end) of the antenna radiator are staggered along the first direction, and the second end is close to the center (magnetic field strength point) of the antenna radiator, so that magneto-electric coupling is formed between the second end and the corresponding antenna radiator; that is, magneto-electric coupling is formed between the third end and the corresponding accessory radiator, magneto-electric coupling is formed between the second end and the corresponding antenna radiator, and magnetic coupling is formed at the position between the two magneto-electric couplings, which can further weaken the energy storage field between the antenna radiator and the accessory radiator, making it easier for the signal to be coupled into the accessory radiator, and further reducing the signal loss between the antenna radiator and the accessory radiator.
  • a projection of the first end is located outside a projection of the antenna radiator.
  • the first end and the second end are both open ends.
  • a grounding point is provided on the accessory radiator, and the grounding point is located between the first end and the second end.
  • a grounding metal layer may be provided on the housing, and the grounding point of the accessory radiator may be connected to the grounding metal layer through a wire to achieve grounding of the grounding point of the accessory radiator.
  • the grounding metal layer may be provided on a side plate or a back plate of the housing.
  • the accessory radiator includes a first accessory radiator and a second accessory radiator spaced apart along a first direction, an end of the first accessory radiator away from the second accessory radiator is a first end, and an end of the second accessory radiator away from the first accessory radiator is a second end; the first end and the second end are both ground ends.
  • the antenna radiator includes a first antenna radiator and a second antenna radiator spaced apart along the first direction, an end of the first antenna radiator away from the second antenna radiator is a third end, and an end of the second antenna radiator away from the first antenna radiator is a fourth end; the third end and the fourth end are both grounded ends; a first gap is formed between the first antenna radiator and the second antenna radiator, a second gap is formed between the first accessory radiator and the first accessory radiator, and the first gap and the second gap are spaced apart along the first direction.
  • the minimum distance between the first slit and the third end is smaller than the minimum distance between the second slit and the third end. So that the first slit and the second slit are arranged spaced apart along the first direction, and the first slit is closer to the third end.
  • the minimum distance between the first slit and the third end is smaller than the minimum distance between the second slit and the third end, so that the lengths of the first accessory radiator and the second accessory radiator are substantially equal, so as to prevent the lengths of the first accessory radiator and the second accessory radiator from being too large or too small.
  • the projection of the first end is located within the projection of the antenna radiator.
  • the present application also provides a housing, comprising a housing and the accessories as described above, wherein the accessories are arranged on the housing.
  • the housing is configured to accommodate an electronic device, wherein the accessory radiator is disposed inside the housing.
  • the housing provided in the embodiment of the present application includes the accessories in any of the above embodiments, so the two can solve the same technical problems and achieve the same technical effects.
  • the housing includes a back plate and a side plate surrounding the back plate, the side plate is vertically arranged with the back plate, and the side plate and the back plate form a receiving cavity for receiving the electronic device;
  • the back plate is rectangular, the side plate includes a first side plate and a second side plate, the first side plate and the second side plate correspond to the sides adjacent to the back plate, and the accessory radiator is arranged on the first side plate.
  • the accessory radiator is offset relative to the center of the first side plate along the length direction of the first side plate, that is, the accessory radiator is biased. It can be understood that the center offset of the accessory radiator relative to the first side plate can be different distances from the first end and the second end to the center.
  • the first end and the third end can be arranged to be spaced apart along the first direction, that is, the electric field strength point of the antenna radiator and the electric field strength point of the accessory radiator are staggered along the first direction, and the third end is close to the center of the accessory radiator, so that a magneto-electric coupling is formed between the third end and the accessory radiator corresponding thereto, thereby reducing the signal loss between the antenna radiator and the accessory radiator.
  • the first side plate may be a side plate located at the top of the housing, so that when the electronic device is placed in the housing, the first side plate is close to the frame provided with the antenna radiator, so that the accessory radiator and the antenna radiator are close to each other.
  • the antenna radiator faces the zenith direction to prevent external objects such as the user's head from blocking the signal.
  • the distance between the accessory radiator and the inner wall of the housing is 1 mm-3 mm. In this way, the distance between the antenna radiator and the accessory radiator can be small while ensuring that the signal loss between the antenna radiator and the accessory radiator is low, which is convenient for realizing a light and thin design of the accessory.
  • an embodiment of the present application further provides a communication device, comprising an electronic device and a housing as described above, wherein the housing is used to accommodate the electronic device.
  • the communication device provided in the embodiment of the present application includes the accessories in any of the above embodiments, so the two can solve the same technical problems and achieve the same technical effects.
  • an embodiment of the present application further provides a communication device, including an electronic device and the accessory as described above, wherein the accessory is arranged close to an antenna radiator of the electronic device.
  • the communication device provided in the embodiment of the present application includes the accessories in any of the above embodiments, so the two can solve the same technical problems and achieve the same technical effects.
  • the electronic device includes a frame, a first insulating break and a second insulating break are provided on the frame, the antenna radiator includes at least a portion of the conductive frame between the first insulating break and the second insulating break; the projection of the accessory radiator on the frame covers the first insulating break, and the projection of the accessory radiator on the frame is spaced from the second insulating break. Since other communication antennas are generally provided on the frame, the projection of the accessory radiator on the frame is spaced from the second insulating break to prevent the accessory radiator from affecting the operation of other communication antennas.
  • the antenna radiator includes a main radiator and a parasitic radiator arranged along a first direction, the main radiator includes a third end and a fourth end, the parasitic radiator is located on a side of the third end away from the fourth end, and the main radiator is used to couple a signal to the parasitic radiator;
  • the accessory radiator includes a first end and a second end, and in a preset plane parallel to the first direction, the projection of the first end is located within the projection of the parasitic radiator.
  • the first end (electric field strength point) can be staggered with the eighth end (electric field strength point) and the third end (electric field strength point), and the eighth end (electric field strength point) and the third end (electric field strength point) are both close to the center (magnetic field strength point) of the accessory radiator, so that the first end (electric field strength point) forms a magneto-electric coupling with the eighth end (electric field strength point) and the third end (electric field strength point), and the magneto-electric coupling area can be increased to further weaken the energy storage field between the antenna radiator and the parasitic radiator, and further reduce the signal loss between the antenna radiator and the parasitic radiator.
  • the parasitic radiator is disposed spaced apart from the main radiator along the first direction.
  • the distance between the accessory radiator and the antenna radiator is 1 mm-3 mm. In this way, the distance between the antenna radiator and the accessory radiator can be small while ensuring that the signal loss between the antenna radiator and the accessory radiator is low, which facilitates the realization of a light and thin design of the accessory.
  • an embodiment of the present application further provides a communication system, comprising the communication device as described above and an external antenna, wherein the external The external antenna is connected to the RF connector, and the external antenna is used to generate a second resonance, wherein the second resonance is used to cover the above-mentioned satellite transmission frequency band or the satellite reception frequency band.
  • the above-mentioned satellite transmission frequency band includes a 2 GHz frequency
  • the above-mentioned satellite reception frequency band includes a 2.2 GHz frequency.
  • the communication system provided in the embodiment of the present application includes the accessories in any of the above embodiments, so the two can solve the same technical problems and achieve the same technical effects.
  • FIG1 is a schematic diagram of the structure of a communication system provided in an embodiment of the present application.
  • FIG2 is an exploded view of an electronic device and a housing in a communication device provided in an embodiment of the present application
  • FIG3 is a schematic diagram of the structure of an electronic device in a communication device provided in an embodiment of the present application.
  • FIG4 is a schematic diagram of the beam angle of an electronic device
  • FIG5 is a schematic diagram of the beam angle of the external antenna
  • FIG6 is a schematic diagram of the structure of a communication system provided in an embodiment of the present application applied to a vehicle-mounted scenario
  • FIG. 7 is a first structural diagram of an accessory radiator and an antenna radiator in a communication device provided in an embodiment of the present application.
  • FIG8 is a schematic diagram of the position between the accessory radiator and the electronic device in the communication device provided in an embodiment of the present application.
  • FIG9 is a graph showing electric and magnetic fields of the structure shown in FIG8 ;
  • FIG10 is an S parameter curve diagram of the structure shown in FIG8 ;
  • FIG11a is a second structural schematic diagram of an accessory radiator and an antenna radiator in a communication device provided in an embodiment of the present application;
  • FIG11b is a third structural schematic diagram of an accessory radiator and an antenna radiator in a communication device provided in an embodiment of the present application.
  • FIG12 is a graph showing electric and magnetic fields of the structure shown in FIG11b;
  • FIG13 is a fourth structural diagram of an accessory radiator and an antenna radiator in a communication device provided in an embodiment of the present application.
  • FIG14 is a schematic structural diagram of an accessory radiator in a communication device provided in an embodiment of the present application, including a first accessory radiator and a second accessory radiator;
  • FIG15a is a second schematic diagram of the position between the accessory radiator and the electronic device in the communication device provided in an embodiment of the present application;
  • FIG15 b is an S parameter curve diagram of the structure shown in FIG15 a ;
  • FIG15c is an antenna matching diagram of the structure shown in FIG15a;
  • FIG16a is a third schematic diagram of the position between the accessory radiator and the electronic device in the communication device provided in an embodiment of the present application.
  • FIG16b is an S parameter curve diagram of the structure shown in FIG16a;
  • FIG16c is an antenna matching diagram of the structure shown in FIG16a;
  • FIG17a is a fourth schematic diagram of the position between the accessory radiator and the electronic device in the communication device provided in an embodiment of the present application.
  • FIG17b is an S parameter curve diagram of the structure shown in FIG17a;
  • FIG17c is an antenna matching diagram of the structure shown in FIG17a;
  • FIG18 is an exploded view of a communication system in an embodiment of the present application.
  • FIG19 is a schematic diagram of the structure of a housing in an embodiment of the present application.
  • FIG20 is a top view of the housing in an embodiment of the present application.
  • FIG21 is a fifth structural diagram of an accessory radiator and an antenna radiator in a communication device provided in an embodiment of the present application.
  • FIG22 is a graph showing electric and magnetic fields of the structure shown in FIG21;
  • FIG23 is a sixth structural diagram of an accessory radiator and an antenna radiator in a communication device provided in an embodiment of the present application.
  • FIG24 is a seventh structural diagram of an accessory radiator and an antenna radiator in a communication device provided in an embodiment of the present application.
  • FIG25a is a fifth schematic diagram of the position between the accessory radiator and the electronic device in the communication device provided in an embodiment of the present application.
  • FIG25 b is an S parameter curve diagram of the structure shown in FIG25 a ;
  • FIG25c is an antenna matching diagram of the structure shown in FIG25a;
  • FIG26a is a sixth schematic diagram of the position between the accessory radiator and the electronic device in the communication device provided in an embodiment of the present application.
  • FIG26b is an S parameter curve diagram of the structure shown in FIG26a;
  • FIG26c is an antenna matching diagram of the structure shown in FIG26a;
  • FIG27a is a seventh schematic diagram of the position between the accessory radiator and the electronic device in the communication device provided in an embodiment of the present application;
  • FIG27b is an S parameter curve diagram of the structure shown in FIG27a;
  • FIG28 is a schematic diagram eight of the structure of an accessory radiator and an antenna radiator in a communication device provided in an embodiment of the present application;
  • FIG29 is a ninth structural diagram of an accessory radiator and an antenna radiator in a communication device provided in an embodiment of the present application.
  • FIG30 is a schematic diagram of the structure of an accessory radiator and an antenna radiator in a communication device provided in an embodiment of the present application.
  • FIG31 is a schematic diagram 11 of the structure of an accessory radiator and an antenna radiator in a communication device provided in an embodiment of the present application;
  • FIG32 is a twelfth structural diagram of an accessory radiator and an antenna radiator in a communication device provided in an embodiment of the present application;
  • FIG33 is a thirteenth structural diagram of an accessory radiator and an antenna radiator in a communication device provided in an embodiment of the present application.
  • FIG34 a is a schematic diagram of the antenna structure corresponding to the line common mode
  • FIG34 b is a diagram showing the current and electric field distribution of the antenna structure in FIG34 a ;
  • FIG34c is a current curve diagram of the accessory radiator in FIG28;
  • FIG35 a is a schematic diagram of the antenna structure corresponding to the linear differential mode
  • FIG35 b is a diagram showing the current and electric field distribution of the antenna structure in FIG35 a ;
  • FIG35c is a current curve diagram of the accessory radiator in FIG11a;
  • FIG36 a is a schematic diagram of the antenna structure corresponding to the slot common mode
  • FIG36b is a diagram showing the current and electric field distribution of the antenna structure in FIG36a;
  • FIG36c is a current curve diagram of the accessory radiator in FIG30;
  • FIG37a is a schematic diagram of the antenna structure corresponding to the slot differential mode
  • FIG37b is a diagram showing the current and electric field distribution of the antenna structure in FIG37a;
  • FIG. 37 c is a current curve diagram of the accessory radiator in FIG. 32 .
  • 1 communication device; 2: external antenna; 3: coaxial cable; 10: accessory; 20: electronic device; 30: housing; 100: communication system; 110: accessory radiator; 120: RF connector; 130: dielectric board; 111: first accessory radiator; 112: second accessory radiator; 1111: first end; 1112: fifth end; 1121: second end; 1122: sixth end; 113: first gap; 30: housing; 310: shell; 320: accommodating cavity; 311: back plate; 312: side plate; 313: first side plate; 314: sixth end Two side plates; 200: antenna radiator; 201: main radiator; 202: parasitic radiator; 203: seventh end; 204: eighth end; 210: cover plate; 220: display screen; 230: middle frame; 231: frame; 240: printed circuit board; 250: back cover; 2323: first insulating break; 2324: second insulating break; 261: first antenna radiator; 2611: third end; 2612: ninth end; 262: second antenna radiator; 2621: fourth end; 2622
  • first”, “second”, etc. are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.
  • a feature defined as “first”, “second”, etc. may explicitly or implicitly include one or more of the features.
  • directional terms such as “up”, “down”, “left”, “right”, “horizontal” and “vertical” are defined relative to the orientation of the components schematically placed in the drawings. It should be understood that these directional terms are relative concepts. They are used for relative description and clarification, and they may change accordingly according to changes in the orientation of the components placed in the drawings.
  • connection should be understood in a broad sense.
  • connection can be a fixed connection, an electrical connection, a coupled connection, or a detachable connection, or an integral one; it can be directly connected or indirectly connected through an intermediate medium.
  • coupling can be understood as direct coupling and/or indirect coupling
  • coupled connection can be understood as direct coupling connection and/or indirect coupling connection.
  • Direct coupling can also be called “electrical connection”, which is understood as the physical contact and electrical conduction of components; it can also be understood as the form in which different components in the circuit structure are connected through physical lines such as copper foil or wires on a printed circuit board (PCB) that can transmit electrical signals; "indirect coupling” can be understood as two conductors being electrically conductive in an airless/non-contact manner.
  • indirect coupling can also be called capacitive coupling, for example, signal transmission is achieved by forming an equivalent capacitor through coupling between the gaps between two conductive parts.
  • a and B are arranged opposite to each other, which may mean that A and B are arranged face to face.
  • a and B are arranged opposite to each other, which may mean that A and B are arranged face to face.
  • the two radiators are arranged adjacent to each other and no other radiators are arranged between them.
  • Capacitance It can be understood as lumped capacitance and/or distributed capacitance.
  • Lumped capacitance refers to capacitive components, such as capacitors; distributed capacitance (or distributed capacitance) refers to the equivalent capacitance formed by two conductive parts separated by a certain gap.
  • Lumped inductance refers to inductive components, such as inductors; distributed inductance (or distributed inductance) refers to the equivalent inductance formed by a certain length of conductive parts, such as the equivalent inductance formed by the conductor due to curling or rotation.
  • Radiator is a device in the antenna used to receive/send electromagnetic wave radiation.
  • the narrow sense of "antenna” is to be understood as a radiator, which converts the waveguide energy from the transmitter into radio waves, or converts radio waves into waveguide energy, which is used to radiate and receive radio waves.
  • the modulated high-frequency current energy (or waveguide energy) generated by the transmitter is transmitted to the transmitting radiator via the feeder line, and is converted into a certain polarized electromagnetic wave energy by the radiator and radiated in the desired direction.
  • the receiving radiator converts a certain polarized electromagnetic wave energy from a specific direction in space into modulated high-frequency current energy, which is transmitted to the receiver input via the feeder line.
  • the radiator may include a conductor with a specific shape and size, such as a linear or sheet-like shape, etc.
  • the present application does not limit the specific shape.
  • the linear radiator may be referred to as a linear antenna.
  • the linear radiator may be implemented by a conductive frame, and may also be referred to as a frame antenna.
  • the linear radiator may be implemented by a bracket conductor, and may also be referred to as a bracket antenna.
  • the linear radiator or the radiator of the linear antenna, has a wire diameter (e.g., including thickness and width) much smaller than the wavelength (e.g., the dielectric wavelength) (e.g., less than 1/16 of the wavelength), and the length may be comparable to the wavelength (e.g., the dielectric wavelength) (e.g., the length is about 1/8 of the wavelength, or 1/8 to 1/4, or 1/4 to 1/2, or longer).
  • the main forms of linear antennas are dipole antennas, half-wave dipole antennas, monopole antennas, loop antennas, and inverted F antennas (also known as IFA, Inverted F Antenna).
  • each dipole antenna generally includes two radiating branches, and each branch is fed by a feeding unit from the feeding end of the radiating branch.
  • an inverted-F antenna IFA
  • IFA inverted-F antenna
  • the IFA antenna has a feeding point and a grounding point, and is called an inverted-F antenna because its side view is an inverted F shape.
  • the sheet radiator may include a microstrip antenna, or a patch antenna, such as a planar inverted F antenna (also known as PIFA, Planar Inverted F Antenna).
  • the sheet radiator may be implemented by a planar conductor (such as a conductive sheet or a conductive coating, etc.).
  • the sheet radiator may include a conductive sheet, such as a copper sheet, etc.
  • the sheet radiator may include a conductive coating, such as a silver paste, etc.
  • the shape of the sheet radiator includes a circle, a rectangle, a ring, etc., and the present application does not limit the specific shape.
  • the structure of the microstrip antenna is generally composed of a dielectric substrate, a radiator and a floor, wherein the dielectric substrate is arranged between the radiator and the floor.
  • the radiator may also include a slot or a slit formed on the conductor, for example, a closed or semi-closed slot or slit formed on the grounded conductor surface.
  • a slotted or slit radiator may be referred to as a slot antenna or a slot antenna.
  • the radial dimension (for example, including the width) of the slot or slit of the slot antenna/slot antenna is much smaller than the wavelength (for example, the dielectric wavelength) (for example, less than 1/16 of the wavelength), and the length dimension may be comparable to the wavelength (for example, the dielectric wavelength) (for example, the length is about 1/8 of the wavelength, or 1/8 to 1/4, or 1/4 to 1/2, or longer).
  • a radiator with a closed slot or slit may be referred to as a closed slot antenna.
  • a radiator with a semi-closed slot or slit (for example, an opening is added to a closed slot or slit) may be referred to as an open slot antenna.
  • the slot shape is a long strip.
  • the length of the slot is about half a wavelength (for example, the dielectric wavelength).
  • the length of the slot is about an integer multiple of the wavelength (for example, one times the dielectric wavelength).
  • the slot can be fed by a transmission line connected across one or both sides thereof, thereby exciting a radio frequency electromagnetic field on the slot and radiating electromagnetic waves into space.
  • the radiator of the slot antenna or slot antenna can be realized by a conductive frame with both ends grounded, which can also be called a frame antenna; in this embodiment, it can be regarded as that the slot antenna or slot antenna includes a linear radiator, which is spaced apart from the floor and grounded at both ends of the radiator, thereby forming a closed or semi-closed slot or slot.
  • the radiator of the slot antenna or slot antenna can be realized by a bracket conductor with both ends grounded, which can also be called a bracket antenna.
  • the electronic device may further include a test socket (or referred to as a radio frequency socket or a radio frequency test socket).
  • the test socket may be used to insert a coaxial cable to test the characteristics of the radio frequency front-end circuit or the radiator of the antenna through the cable.
  • the radio frequency front-end circuit may be considered as a circuit portion coupled between the test socket and the transceiver.
  • the RF front-end circuit may be integrated into a RF front-end chip in the electronic device, or the RF front-end circuit and the transceiver may be integrated into a RF chip in the electronic device.
  • any two of the first/second/...Nth feeding circuits in the present application can share the same transceiver, for example, transmitting signals through a RF channel in a transceiver (for example, a port (pin) of a RF chip); they can also share a RF front-end circuit, for example, processing signals through a switch or amplifier in a RF front-end.
  • a transceiver for example, a port (pin) of a RF chip
  • a RF front-end circuit for example, processing signals through a switch or amplifier in a RF front-end.
  • two feeding circuits in the first/second/...Nth feeding circuits in the present application usually correspond to two radio frequency test sockets in the electronic device.
  • the matching circuit is a circuit related to adjusting the radiation characteristics of the antenna.
  • the matching circuit is coupled between the feed circuit and the corresponding radiator.
  • the matching circuit is coupled between the test socket and the radiator.
  • the matching circuit has the function of impedance matching and/or frequency tuning. Usually, it is considered to be a part of the antenna.
  • the tuning circuit is a circuit related to adjusting the resonant frequency of the antenna.
  • the tuning circuit is coupled between the radiator and the floor.
  • the tuning circuit is coupled between the feeding circuit and the radiator.
  • the tuning circuit has the function of impedance matching and/or frequency tuning. Generally, it is considered to be a part of the antenna.
  • the matching circuit/tuning circuit may include a switch and/or an electronic component/device, and the switch may be an electronic component/device for switching the coupling connection of the radiator.
  • the switch in the matching circuit/tuning circuit may also be referred to as an antenna switch.
  • the matching circuit/tuning circuit may include a filtering circuit.
  • the grounding structure/feeding structure may include a connector, such as a metal spring, and the radiator is coupled to the floor through the grounding structure/feeding structure is coupled to the feeding circuit.
  • the feeding structure may include a transmission line/feeding line, and the grounding structure may include a grounding line.
  • the feed line also called the transmission line, refers to the connection line between the antenna's transceiver and the radiator.
  • the transmission line can directly transmit current waves or electromagnetic waves depending on the frequency and form.
  • the connection point on the radiator where the transmission line is connected is usually called the feeding point.
  • Transmission lines include wire transmission lines, coaxial transmission lines, waveguides, or microstrip lines.
  • the transmission line can include a bracket antenna body or a glass antenna body depending on the implementation form.
  • the transmission line can be implemented by LCP (Liquid Crystal Polymer), FPC (Flexible Printed Circuit), or PCB (Printed Circuit Board) depending on the carrier.
  • Ground/floor It can refer to at least a part of any grounding layer, grounding plate, or grounding metal layer, etc. in an electronic device (such as a mobile phone), or at least a part of any combination of any of the above grounding layers, grounding plates, or grounding components, etc., and "ground/floor” can be used for grounding components in electronic devices.
  • ground/floor may include any one or more of the following: a grounding layer of a circuit board of an electronic device, a grounding plate formed by a middle frame of an electronic device, a grounding metal layer formed by a metal film under a screen, a conductive grounding layer of a battery, and a conductive part or metal part electrically connected to the above grounding layer/grounding plate/metal layer.
  • the circuit board may be a printed circuit board (PCB), such as an 8-layer, 10-layer, or 12-14-layer board having 8, 10, 12, 13, or 14 layers of conductive material, or an element separated and electrically insulated by a dielectric layer or insulating layer such as glass fiber, polymer, etc.
  • PCB printed circuit board
  • the circuit board includes a dielectric substrate, a grounding layer, and a routing layer, and the routing layer and the grounding layer are electrically connected through vias.
  • components such as a display, a touch screen, an input button, a transmitter, a processor, a memory, a battery, a charging circuit, a system on chip (SoC) structure, etc. can be mounted on or connected to a circuit board; or electrically connected to a wiring layer and/or a ground layer in the circuit board.
  • SoC system on chip
  • a radio frequency source is disposed in the wiring layer.
  • grounding layers, grounding plates, or grounding metal layers are made of conductive materials.
  • the conductive material can be any of the following materials: copper, aluminum, stainless steel, brass and their alloys, copper foil on an insulating substrate, aluminum foil on an insulating substrate, gold foil on an insulating substrate, silver-plated copper, silver-plated copper foil on an insulating substrate, silver foil and tin-plated copper on an insulating substrate, cloth impregnated with graphite powder, graphite-coated substrates, copper-plated substrates, brass-plated substrates, and aluminum-plated substrates.
  • the grounding layer/grounding plate/grounding metal layer can also be made of other conductive materials.
  • Grounding refers to coupling with the above-mentioned ground/floor through a grounding structure and/or a grounding circuit.
  • grounding can be achieved through physical grounding, such as physical grounding (or physical ground) at a specific position on the frame through some structural members of the middle frame.
  • grounding can be achieved through device grounding, such as grounding through devices such as capacitors/inductors/resistors connected in series or in parallel (or device ground).
  • the resonant frequency is also called the resonance frequency.
  • the resonant frequency can have a frequency range, that is, the frequency range in which resonance occurs.
  • the resonant frequency can be a frequency range in which the return loss characteristic is less than -6dB.
  • the strongest point of resonance can be called the resonance point, and the frequency corresponding to the resonance point is the center frequency point frequency.
  • the return loss characteristic of the center frequency can be less than -20dB.
  • the antenna/radiator mentioned in this application produces a "first/second... resonance", where the first resonance should be the antenna/radiator.
  • the antenna/radiator can generate one or more antenna modes according to the specific design, and each antenna mode can generate a corresponding fundamental mode resonance.
  • Resonant frequency band The range of the resonant frequency is the resonant frequency band.
  • the return loss characteristic of any frequency point in the resonant frequency band can be less than -6dB or -5dB.
  • Communication frequency band/working frequency band Regardless of the type of antenna, it always works within a certain frequency range (band width).
  • an antenna that supports the B40 frequency band has a working frequency band that includes frequencies in the range of 2300MHz to 2400MHz, or in other words, the working frequency band of the antenna includes the B40 frequency band.
  • the frequency range that meets the index requirements can be regarded as the working frequency band of the antenna.
  • the width of the working frequency band is called the working bandwidth.
  • the working bandwidth of an omnidirectional antenna may reach 3-5% of the center frequency.
  • the working bandwidth of a directional antenna may reach 5-10% of the center frequency.
  • the bandwidth can be considered as a frequency range on both sides of the center frequency (for example, the resonant frequency of a dipole), where the antenna characteristics are within the acceptable value range of the center frequency.
  • the resonant frequency band and the operating frequency band may be the same, or may partially overlap.
  • one or more resonant frequency bands of the antenna may cover one or more operating frequency bands of the antenna.
  • Electrical length can be expressed as the ratio of the physical length (i.e. mechanical length or geometric length) multiplied by the transmission time of an electrical or electromagnetic signal in a medium to the time required for the signal to pass the same distance as the physical length of the medium in free space.
  • the electrical length can satisfy the following formula:
  • L is the physical length
  • a is the transmission time of the electrical or electromagnetic signal in the medium
  • b is the transmission time in free space.
  • electrical length can also refer to the ratio of physical length (i.e. mechanical length or geometric length) to the wavelength of the transmitted electromagnetic wave.
  • the electrical length can satisfy the following formula:
  • L is the physical length and ⁇ is the wavelength of the electromagnetic wave.
  • the physical length of the radiator may be understood as being within ⁇ 20%, or within ⁇ 10%, or within ⁇ 5% of the electrical length of the radiator.
  • the wavelength in a certain wavelength mode (such as a half-wavelength mode, etc.) of the antenna may refer to the wavelength of the signal radiated by the antenna.
  • the half-wavelength mode of the suspended metal antenna may generate resonance in the 1.575 GHz frequency band, wherein the wavelength in the half-wavelength mode refers to the wavelength of the signal radiated by the antenna in the 1.575 GHz frequency band.
  • Wavelength or operating wavelength, which can be the wavelength corresponding to the center frequency of the resonant frequency or the center frequency of the operating frequency band supported by the antenna.
  • the operating wavelength can be the wavelength calculated using the frequency of 1955MHz.
  • "operating wavelength” can also refer to the wavelength corresponding to the non-center frequency of the resonant frequency or the operating frequency band.
  • the wavelength in the embodiments of the present application generally refers to the medium wavelength, which can be the medium wavelength corresponding to the center frequency of the resonant frequency, or the medium wavelength corresponding to the center frequency of the working frequency band supported by the antenna.
  • the wavelength can be the medium wavelength calculated using the frequency of 1955MHz.
  • “medium wavelength” may also refer to the medium wavelength corresponding to the non-center frequency of the resonant frequency or the working frequency band.
  • the medium wavelength mentioned in the embodiments of the present application can be simply calculated by the relative dielectric constant of the medium filled on one or more sides of the radiator.
  • the "end/point" in the first end/second end/feeding end/grounding end/feeding point/grounding point/connection point of the antenna radiator cannot be narrowly understood as an end point or end physically disconnected from other radiators, but can also be considered as a point or a section on a continuous radiator.
  • the "end/point" may include a connection/coupling area on the antenna radiator that is coupled to other conductive structures.
  • the feed end/feeding point may be a coupling area on the antenna radiator that is coupled to a feed structure (for example, with
  • the grounding terminal/grounding point may be a connection/coupling area on the antenna radiator that is coupled to the grounding structure.
  • Open end, closed end In some embodiments, the open end and the closed end are, for example, relative to whether they are grounded. The closed end is grounded, and the open end is not grounded. In some embodiments, the open end and the closed end are, for example, relative to other conductors. The closed end is electrically connected to other conductors, and the open end is not electrically connected to other conductors. In one embodiment, the open end can also be referred to as a suspended end, a free end, an open end, or an open-circuit end. In one embodiment, the closed end can also be referred to as a grounded end or a short-circuit end. It should be understood that in some embodiments, other conductors can be coupled and connected through the open end to transfer coupling energy (which can be understood as transferring current).
  • the "closed end" can also be understood from the perspective of current distribution.
  • the closed end or the grounded end, etc. can be understood as a point with larger current on the radiator, or as a point with smaller electric field on the radiator.
  • the current distribution characteristics of larger current/small electric field can be maintained by coupling electronic devices (for example, capacitors, inductors, etc.) through the closed end.
  • the current distribution characteristics of larger current/small electric field can be maintained by opening a gap at or near the closed end (for example, a gap filled with insulating material).
  • the "open end" can also be understood from the perspective of current distribution.
  • the open end or suspended end, etc. can be understood as a point with smaller current on the radiator, or as a point with larger electric field on the radiator.
  • coupling electronic devices for example, capacitors, inductors, etc.
  • through the open end can maintain the current distribution characteristics of the smaller current point/larger electric field point.
  • coupling electronic devices for example, capacitors, inductors, etc.
  • a radiator end at a gap from the perspective of the structure of the radiator, it is similar to a radiator at an opening of an open end or a suspended end
  • the radiator end at the gap is actually a closed end or a grounded end, etc.
  • the “suspended radiator” mentioned in the embodiments of the present application means that the radiator is not directly connected to the feeder line/feeder branch and/or the grounding line/grounding branch, but is fed and/or grounded through indirect coupling.
  • the suspended radiator in “suspended end” or “suspended radiator” does not mean that there is no structure around the radiator to support it.
  • the suspended radiator can be, for example, a radiator disposed on the inner surface of the insulating back cover.
  • the middle (position) of the conductor can refer to a conductor portion including the midpoint on the conductor, or can be a conductor portion of one-eighth of the wavelength including the midpoint of the conductor, wherein the wavelength can be the wavelength corresponding to the working frequency band of the antenna, can be the wavelength corresponding to the center frequency of the working frequency band, or can be the wavelength corresponding to the resonance point.
  • the middle (position) of the conductor can refer to a conductor portion on the conductor that is less than a predetermined threshold value (for example, 1 mm, 2 mm, or 2.5 mm) from the midpoint.
  • the middle position of the slot or the middle position of one side of the slot refers to the middle position of one side of the slot.
  • collinearity, coaxiality, coplanarity, symmetry for example, axisymmetry, or center symmetry, etc.
  • parallelism, perpendicularity, sameness for example, same length, same width, etc.
  • sameness for example, same length, same width, etc.
  • a predetermined threshold for example, 1mm, 0.5m, or 0.1mm
  • the predetermined threshold may be less than or equal to a threshold of 1mm, for example, the predetermined threshold may be 0.5mm, or may be 0.1mm.
  • the predetermined angle may be an angle within a range of ⁇ 10°, for example, the predetermined angle deviation is ⁇ 5°.
  • the current same direction/reverse direction mentioned in the embodiments of the present application should be understood as the direction of the main current on the conductor on the same side is the same direction/reverse direction.
  • the main currents stimulated on the conductors on both sides of the annular conductor for example, a conductor surrounding a gap, on the conductors on both sides of the gap
  • the current same direction on a conductor may refer to the current on the conductor having no reverse point.
  • the current reverse on a conductor may refer to the current on the conductor having at least one reverse point.
  • the current same direction on two conductors may refer to the currents on both conductors having no reverse point and flowing in the same direction.
  • the current reverse on two conductors may refer to the currents on both conductors having no reverse point and flowing in opposite directions. The current same direction/reverse direction on multiple conductors can be understood accordingly.
  • the impedance of an antenna generally refers to the ratio of the voltage to the current at the antenna input.
  • Antenna impedance is a measure of the resistance of the antenna to electrical signals.
  • the input impedance of an antenna is a complex number, the real part is called the input resistance, represented by Ri; the imaginary part is called the input resistance, represented by Ri; The part is called input reactance, denoted by Xi.
  • the input reactance of an antenna whose electrical length is much smaller than the working wavelength is very large. For example, a short dipole antenna has a large capacitive reactance; a small loop antenna has a large inductive reactance.
  • the input impedance of a half-wave oscillator with a very thin diameter is about 73.1+j42.5 ohms. In practical applications, in order to facilitate matching, it is generally hoped that the input reactance of a symmetrical oscillator is zero. At this time, the length of the oscillator is called the resonant length.
  • the length of a resonant half-wave oscillator is slightly shorter than half a wavelength in free space, and is generally estimated to be shortened by 5% in engineering.
  • the input impedance of an antenna is related to factors such as the antenna's geometry, size, feed point location, working wavelength, and surrounding environment. When the diameter of a wire antenna is thicker, the input impedance changes more slowly with frequency, and the impedance bandwidth of the antenna is wider.
  • the main purpose of studying antenna impedance is to achieve matching between antenna and transmission line.
  • the input impedance of the antenna should be equal to the characteristic impedance of the transmission line.
  • the input impedance of the antenna should be equal to the conjugate complex of the load impedance.
  • the receiver has a real impedance.
  • the antenna matches the transmission line, the power transmitted from the transmitter to the antenna or from the antenna to the receiver is the maximum. At this time, there will be no reflected waves on the transmission line, the reflection coefficient is equal to zero, and the standing wave coefficient is equal to 1.
  • the degree of matching between the antenna and the transmission line is measured by the reflection coefficient or standing wave ratio at the antenna input. For the transmitting antenna, if the matching is not good, the radiation power of the antenna will decrease, the loss on the transmission line will increase, the power capacity of the transmission line will also decrease, and in severe cases, the transmitter frequency will be "pulled", that is, the oscillation frequency will change.
  • Beam width divided into horizontal beam width and vertical beam width.
  • the horizontal beam width refers to the angle between the two directions where the radiation power drops by 3dB on both sides of the maximum radiation direction in the horizontal direction;
  • the vertical beam width refers to the angle between the two directions where the radiation power drops by 3dB on both sides of the maximum radiation direction in the vertical direction.
  • Antenna gain It is used to characterize the degree to which the antenna radiates the input power. Generally, the narrower the main lobe of the antenna pattern and the smaller the side lobe, the higher the antenna gain.
  • a difference of 10 decibels between two quantities is a difference of 10 times
  • a difference of 20 decibels is a difference of 100 times
  • a difference of 3dB is a difference of 2 times between the two quantities.
  • Antenna return loss It can be understood as the ratio of the signal power reflected back to the antenna port through the antenna circuit to the transmit power of the antenna port. The smaller the reflected signal, the larger the signal radiated into space through the antenna, and the greater the radiation efficiency of the antenna. The larger the reflected signal, the smaller the signal radiated into space through the antenna, and the lower the radiation efficiency of the antenna.
  • Antenna return loss can be expressed by the S11 parameter, which is one of the S parameters.
  • S11 represents the reflection coefficient, which can characterize the quality of the antenna transmission efficiency.
  • the S11 diagram can be understood as a schematic diagram for representing the resonance generated by the antenna.
  • the resonance shown in the S11 diagram in the portion less than -6dB can be understood as the resonant frequency/frequency range/operating frequency band generated by the antenna.
  • the S11 parameter is usually a negative number. The smaller the S11 parameter is, the smaller the antenna return loss is, and the smaller the energy reflected back by the antenna itself is, which means that more energy actually enters the antenna and the higher the system efficiency of the antenna is; the larger the S11 parameter is, the greater the antenna return loss is, and the lower the system efficiency of the antenna is.
  • the S11 value of -4dB can be used as a standard. When the S11 value of the antenna is less than -4dB, it can be considered that the antenna can work normally. It should be understood that the S11 value of -6dB can also be used as a standard in engineering. When the S11 value of the antenna is less than -6dB, it can be considered that the transmission efficiency of the antenna is good.
  • Isolation refers to the ratio of the signal received by another antenna when an antenna transmits a signal to the signal of the transmitting antenna. Isolation is a physical quantity used to measure the degree of mutual coupling between antennas. Assuming that two antennas form a two-port network, the isolation between the two antennas is the S21 and S12 between the antennas. Antenna isolation can be represented by the S21 and S12 parameters, which are also a type of S parameters. The S21 and S12 parameters are usually negative numbers. The smaller the S21 and S12 parameters are, the greater the isolation between the antennas and the smaller the mutual coupling between the antennas; the larger the S21 and S12 parameters are, the smaller the isolation between the antennas and the greater the mutual coupling between the antennas. The isolation of the antenna depends on the antenna radiation pattern, the spatial distance between the antennas, the antenna gain, etc.
  • Ground state corresponds to a section of a radiator, or the lowest frequency resonance generated by a radiator in a certain antenna mode.
  • ground state position or “ground state resonance frequency” refers to the frequency range or resonance frequency corresponding to the ground state of the radiator in a specific antenna mode (for example, the lowest frequency resonance generated).
  • Ground state can also be called “fundamental mode”.
  • the corresponding terms are "higher order” or “higher mode/higher mode”, or can also be called “frequency doubling” (for example, frequency tripling, frequency quintupling).
  • the "resonance” in the embodiments of the present application refers to the resonance in the ground state, or the resonance generated by the fundamental mode.
  • an embodiment of the present application provides a communication system 100, which can be applicable to one or more of the following communication technologies: satellite mobile communication system communication technology, bluetooth (BT) communication technology, global positioning system (GPS) communication technology, wireless fidelity (WiFi) communication technology, global system for mobile communications (GSM) communication technology, wideband code division multiple access (WCDMA) communication technology, long term evolution (LTE) communication technology, 5G communication technology and other future communication technologies.
  • satellite mobile communication system communication technology can be applicable to one or more of the following communication technologies: satellite mobile communication system communication technology, bluetooth (BT) communication technology, global positioning system (GPS) communication technology, wireless fidelity (WiFi) communication technology, global system for mobile communications (GSM) communication technology, wideband code division multiple access (WCDMA) communication technology, long term evolution (LTE) communication technology, 5G communication technology and other future communication technologies.
  • BT bluetooth
  • GPS global positioning system
  • WiFi wireless fidelity
  • GSM global system for mobile communications
  • WCDMA wideband code division multiple access
  • LTE long term
  • the communication system 100 may include a communication device 1 and an external antenna 2, wherein the communication device 1 may include an electronic device 20 and an accessory 10 for the electronic device (hereinafter referred to as the accessory 10), and the electronic device 20 may include a mobile phone, a tablet computer, a customer premises equipment (CPE), a smart bracelet, a smart watch, etc.
  • the electronic device 20 has an antenna radiator 200, and the electronic device 20 can transmit signals or receive signals through the antenna radiator 200 disposed thereon.
  • the accessory 10 is disposed close to the antenna radiator 200 so that the antenna radiator 200 can couple the signal into the accessory 10.
  • the accessory 10 includes a radio frequency connector 120 and an accessory radiator 110, and the external antenna 2 is connected to the radio frequency connector 120.
  • the accessory radiator 110 and the antenna radiator 200 are arranged close to and spaced apart, the external antenna 2 is used to transmit signals to the outside or receive signals from the outside, and the antenna radiator 200 can receive signals from the external antenna 2 through the accessory 10, or transmit wireless signals to the external antenna 2 through the accessory 10; that is, the electronic device 20 transmits and receives signals through the external antenna 2.
  • the use state is when the accessory 10 is adapted to the electronic device 20, that is, the radiator of the accessory 10 is close to the antenna radiator 200 of the electronic device 20.
  • the RF connector 120 can be a universal connector such as an SMA (full name SubMiniature version A) RF connector (connector) to facilitate adaptation to the external antenna 2 shown in FIG. 1 ;
  • the RF connector 120 can include a connector body and an inner conductor, the connector body can include a metal tube, the inner conductor is arranged inside the connector body, and the inner conductor and the connector body are arranged to be spaced apart, and at least one of the inner conductor and the connector body is coupled and connected to the radiator of the accessory 10.
  • An external thread can be provided on the outer wall of the connector body to facilitate the connection of the RF connector 120 with the external antenna 2; illustratively, the RF connector 120 can be connected to the external antenna 2 through a coaxial cable, and accordingly, the inner conductor can be connected to the core wire of the coaxial cable, and the connector body can be connected to the outer conductor of the coaxial cable.
  • the embodiment of the present application does not limit the structure of the RF connector 120, as long as the connection between the accessory 10 and the external antenna 2 can be achieved, so that the accessory 10 can transmit a signal to the external antenna 2 or receive a signal from the accessory radiator 110.
  • the communication system 100 can communicate with the Tiantong satellite, and accordingly, the electronic device 20 can communicate with the Tiantong satellite through the external antenna 2. Since the satellite mobile communication system has the performances of wide coverage (seamless coverage), all-weather, stable and reliable, the electronic device 20 can still ensure communication functions such as calls and text messages in areas with poor communication environment (such as oceans, mountains, plateaus, forests, Gobi, deserts, etc.).
  • the communication device 1 includes a housing 30, and the housing 30 is used to accommodate the electronic device 20.
  • the housing 30 can be a mobile phone shell.
  • the housing 30 can include a back plate 311 and a side plate 312 surrounding the back plate 311.
  • the side plate 312 and the back plate 311 can be arranged substantially vertically, and the side plate 312 and the back plate 311 enclose a receiving cavity 320 for accommodating the mobile phone; when the mobile phone is placed in the receiving cavity 320, the back plate 311 is close to the back cover of the mobile phone, and the side plate 312 is arranged outside the mobile phone frame.
  • the housing 30 can be used to protect the mobile phone so as to prevent the mobile phone from being damaged when an external object collides with the mobile phone.
  • the material of the housing 30 can include plastic, rubber, etc., and the embodiment of the present application does not limit the material of the housing 30.
  • a decorative pattern or decorative structure can be provided on the housing 30 to improve the decorative effect of the housing 30.
  • the housing 30 also includes the accessory 10 in the above-mentioned implementation method, and the accessory 10 is arranged on the shell 310; the position of the accessory 10 is reasonably set, and when the electronic device 20 is placed in the housing 30, the accessory 10 can be ensured to be close to the antenna radiator 200, so that the antenna of the electronic device can couple the signal to the accessory 10.
  • the communication system 100 is used to communicate with a satellite, and the antenna radiator 200 is used in the electronic device 20 to form a satellite communication antenna.
  • the antenna radiator 200 can be used to feed power to generate a first resonance, and the first resonance is used to cover a first frequency, such as TX (Transmit) of satellite communication.
  • the first resonance is used to cover the center frequency of the frequency band; or the first resonance is used to cover the second frequency, such as the center frequency of the RX (Receive) frequency band of satellite communication.
  • the first frequency is 2 GHz (for example, corresponding to the TX frequency band of the Tiantong satellite);
  • the second frequency is 2.2 GHz (for example, corresponding to the RX frequency band of the Tiantong satellite).
  • the electronic device 20 may include: a cover 210 (cover), a display screen 220/module (display), a printed circuit board 240 (printed circuit board, PCB), a middle frame 230 (middle frame) and a rear cover 250 (rear cover).
  • the cover 210 may be a glass cover (cover glass), or may be replaced by a cover 210 of other materials, such as an ultra-thin glass material cover, a PET (Polyethylene terephthalate) material cover, etc.
  • the cover plate 210 may be disposed close to the display screen 220 , and may be mainly used to protect the display screen 220 and prevent dust.
  • the display screen 220 may include a liquid crystal display panel (LCD), a light emitting diode (LED) display panel, or an organic light-emitting semiconductor (OLED) display panel, etc., but the present application does not impose any restrictions on this.
  • LCD liquid crystal display panel
  • LED light emitting diode
  • OLED organic light-emitting semiconductor
  • the middle frame 230 mainly supports the whole machine.
  • FIG. 2 shows that the PCB is arranged between the middle frame 230 and the back cover 250.
  • the PCB can also be arranged between the middle frame 230 and the display screen 220, and the embodiment of the present application does not limit this.
  • the printed circuit board 240 can adopt a flame retardant material (FR-4) dielectric board, or a Rogers dielectric board, or a mixed dielectric board of Rogers and FR-4, and so on.
  • FR-4 is a code for a grade of flame retardant material
  • Rogers dielectric board is a high-frequency board.
  • the PCB carries electronic components, such as radio frequency chips.
  • a metal layer may be provided on the printed circuit board 240.
  • the metal layer may be used for grounding the electronic components carried on the printed circuit board 240, and may also be used for grounding other components, such as a bracket antenna, a frame antenna, etc.
  • the metal layer may be referred to as a floor, or a grounding plate, or a grounding layer.
  • the metal layer may be formed by etching metal on the surface of any layer of a dielectric plate in the PCB.
  • the metal layer for grounding may be provided on one side of the printed circuit board 240 close to the middle frame 230.
  • the edge of the printed circuit board 240 may be regarded as the edge of its grounding layer.
  • the metal middle frame 230 may also be used for grounding the above-mentioned components.
  • the electronic device 20 may also have other floors/grounding plates/grounding layers, as described above, which will not be repeated here.
  • a floor/grounding plate/grounding layer is usually provided in the internal space 0-2 mm away from the inner surface of the middle frame 230 (for example, the printed circuit board 240, the middle frame 230, the screen metal layer, the battery, etc. can all be regarded as part of the floor).
  • a medium is filled between the frame 231 and the floor, and the inner surface contour of the filling medium and the length and width of the rectangle enclosed can be simply regarded as the length and width of the floor; the length and width of the rectangle enclosed by the outline formed by superimposing all the conductive parts inside the frame 231 can also be regarded as the length and width of the floor.
  • the electronic device 20 may further include a battery (not shown).
  • the battery may be disposed between the middle frame 230 and the back cover 250, or between the middle frame 230 and the display screen 220, and the present application does not limit this.
  • the PCB is divided into a main board and a sub-board, and the battery may be disposed between the main board and the sub-board, wherein the main board may be disposed between the middle frame 230 and the upper edge of the battery, and the sub-board may be disposed between the middle frame 230 and the lower edge of the battery.
  • the electronic device 20 may further include a camera device (not shown in the figure).
  • the camera device may be connected to the PCB, and external images may be acquired through the camera device. Accordingly, when the electronic device 20 is placed in the housing 30 shown in FIG. 2 , the back plate 311 is arranged opposite to the display screen 220, that is, the back plate 311 faces and is close to the back cover 250, and a through hole 280 may be arranged on the back plate 311, and the through hole 280 is directly facing the camera device, so as to prevent the back plate 311 from preventing the camera device from acquiring external images.
  • the electronic device 20 may further include a frame 231, which may be formed of a conductive material such as metal.
  • the frame 231 may be disposed between the display screen 220 and the back cover 250 and extend circumferentially around the periphery of the electronic device 20.
  • the frame 231 may have four sides surrounding the display screen 220 to help fix the display screen 220.
  • the frame 231 made of a conductive material can be directly used as a conductive frame of the electronic device 20, for example, forming the appearance of a metal frame, suitable for a metal industrial design (ID).
  • the outer surface of the frame 231 can be a conductive material, such as a metal material, to form the appearance of a metal frame.
  • the conductive portion of the frame 231 can be used as an antenna radiator 200 (as shown in FIG. 2 ) of the electronic device 20.
  • the outer surface of the frame 231 may also be a non-conductive material, such as plastic, to form a non-metallic frame appearance, suitable for non-metallic ID.
  • the inner surface of the frame 231 may include a conductive material, such as a metal material.
  • the conductive portion of the frame 231 may serve as the antenna radiator 200 of the electronic device 20 (as shown in FIG. 2 It should be understood that the radiator (or the conductive material on the inner surface of the frame 231) is arranged in close contact with the non-conductive material of the frame 231 to facilitate antenna radiation, and the conductive material and the non-conductive material should be regarded as part of the frame 231.
  • the middle frame 230 may include a border 231.
  • the middle frame 230 including the border 231 is an integral part, which can support the electronic devices in the whole machine.
  • the cover 210 and the back cover 250 are respectively covered along the upper and lower edges of the border 231 to form the housing of the electronic device 20.
  • the border 231 may not be regarded as a part of the middle frame 230.
  • the border 231 may be connected to the middle frame 230 and formed as one piece.
  • the border 231 may include a protrusion extending inward to be connected to the middle frame 230, for example, by means of shrapnel, screws, welding, etc.
  • the cover 210, the back cover 250, the border 231, and the middle frame 230 may be collectively referred to as the housing of the electronic device 20. It should be understood that “casing” can be used to refer to part or all of any one of the cover 210 , the back cover 250 , the frame 231 or the middle frame 230 , or to refer to part or all of any combination of the cover 210 , the back cover 250 , the frame 231 or the middle frame 230 .
  • the back cover 250 may be a back cover 250 made of a metal material; it may also be a back cover 250 made of a non-conductive material, such as a glass back cover, a plastic back cover, or the like; it may also be a back cover 250 made of both a conductive material and a non-conductive material.
  • the back cover 250 including a conductive material can replace the middle frame 230 and be integrated with the frame 231 to support the electronic devices in the whole device.
  • the conductive parts in the middle frame 230 and/or the back cover 250 can be used as a reference ground for the electronic device 20 , wherein the frame 231 , PCB, etc. of the electronic device 20 can be grounded through an electrical connection with the middle frame 230 .
  • the frame 231 can at least partially serve as the antenna radiator 200 (as shown in FIG. 2 ) to receive/transmit radio frequency signals. There can be a gap between this portion of the frame 231 serving as the radiator and other portions of the middle frame 230 or between the frame 230 and the middle frame 230, thereby ensuring that the antenna radiator 200 has a good radiation environment.
  • an aperture can be provided near this portion of the frame 231 serving as the antenna radiator 200.
  • the aperture can include an aperture provided inside the electronic device 20, for example, an aperture that is not visible from the exterior surface of the electronic device 20.
  • the internal aperture can be formed by any one of the middle frame 230, the battery, the circuit board, the back cover 250, the display screen 220, and other internal conductive parts, or by a plurality of them together.
  • the internal aperture can be formed by a structural member of the middle frame 230.
  • the aperture can also include a slit/opening/opening provided on the frame 231.
  • the gap/slit/opening on the frame 231 may be a break formed on the frame 231, and the frame 231 is divided into two parts that are not directly connected at the break.
  • the aperture may also include a gap/slit/opening set on the back cover 250 or the display screen 220.
  • the back cover 250 includes a conductive material, and the aperture set at the conductive material may be connected to the gap or break of the frame 231 to form a continuous aperture on the appearance of the electronic device 20.
  • the antenna radiator 200 of the electronic device 20 may also be disposed in the frame 231.
  • the frame 231 includes a non-conductive material, and the antenna radiator 200 may be located in the electronic device 20 and disposed along the frame 231, or the antenna radiator 200 may be at least partially embedded in the non-conductive material of the frame 231.
  • the antenna radiator 200 is disposed close to the non-conductive material of the frame 231 to minimize the volume occupied by the antenna radiator 200 and to be closer to the outside of the electronic device 20 to achieve a better signal transmission effect.
  • the antenna radiator 200 being disposed close to the frame 231 means that the antenna radiator 200 may be disposed close to the frame 231, or may be disposed close to the frame 231, for example, there may be a certain small gap between the antenna radiator 200 and the frame 231.
  • FIG. 3 only schematically shows some components of the electronic device 20 , and the actual shapes, sizes and structures of these components are not limited by the figure.
  • the surface of the electronic device 20 where the display screen 220 is located can be considered as the front surface
  • the surface where the back cover 250 is located can be considered as the back surface
  • the surface where the frame 231 is located can be considered as the side surface
  • the orientation of the electronic device 20 has a top, a bottom, a left side, and a right side.
  • the accessory 10 can be arranged on the side plate 312 of the housing 310, so that when the mobile phone is placed in the accommodating cavity 320, the accessory 10 can be ensured to be close to the frame 231 where the antenna radiator 200 is arranged, so as to facilitate signal coupling. Accordingly, the use state can be the state where the mobile phone is placed in the mobile phone case.
  • the communication beam angle A (as shown in FIG. 4) of the antenna formed by the antenna radiator 200 is relatively small (such as ⁇ 15° in the zenith direction).
  • the antenna radiator 200 In the area within the communication beam angle, the antenna radiator 200 has a certain gain and can transmit and receive signals. In the area outside the beam angle, the gain of the antenna radiator 200 is relatively low, and it is difficult to transmit and receive signals, which affects the communication function.
  • a wide-beam antenna can be designed so that the antenna formed by the antenna radiator 200 has a relatively large communication beam angle A (such as ⁇ 45°, ⁇ 50° in the zenith direction).
  • the antenna radiator 200 When there are obstructions in the outside world (for example, in forests, mountainous areas, etc.), although the antenna radiator 200 has a relatively large communication beam angle, the obstruction still has a particularly obvious impact on the communication quality, which can easily lead to call failure or low call success rate.
  • the external antenna 2 is not limited by space and structure, the external antenna 2 can be set larger, so that the communication beam angle A of the external antenna 2 is larger (such as ⁇ 60° in the zenith direction), and the gain in the beam angle area may be higher than the gain of the antenna radiator 200 (exemplarily, the gain may be 3dB-4dB higher than the antenna formed by the antenna radiator 200). Therefore, the electronic device 20 has better communication quality when communicating through the external antenna 2 than communicating only through the antenna radiator 200.
  • the external antenna 2 may include a gooseneck antenna, etc., and the embodiment of the present application does not limit the external antenna 2.
  • the external antenna 2 can be directly mounted on the RF connector 120 of the accessory 10.
  • the distance between the external antenna 2 and the RF connector 120 is small, which can reduce the signal loss from the RF connector 120 to the external antenna 2, thereby improving the communication quality.
  • the entire communication system 100 is small in size and compact in structure, and the user can make calls and send text messages through the handheld electronic device 20 and the external antenna 2, and the operation is more flexible.
  • the communication system 100 is applied to a vehicle-mounted scenario.
  • the external antenna 2 can be arranged on the outside of the vehicle.
  • the exemplary external antenna 2 can be located on the roof 4 to prevent the vehicle from blocking the signal.
  • the external antenna 2 is located on the roof 4.
  • the electronic device 20 (such as a mobile phone) and the accessory 10 can be located in the cab or cabin of the vehicle.
  • the external antenna 2 can be connected to the RF connector of the accessory 10 via a coaxial cable 3 so that the user can make and receive calls and send text messages in the vehicle.
  • the external antenna 2 can be connected to the roof 4 in a detachable manner.
  • a magnet can be provided on the external antenna 2.
  • the magnetic force between the magnet and the roof 4 can fix the external antenna 2 on the roof 4; or, a suction cup is provided on the external antenna 2.
  • the suction cup is adsorbed on the roof 4.
  • the suction cup can be fixed to the roof 4 through external air pressure, thereby achieving fixation between the external antenna 2 and the roof 4; of course, the external antenna 2 can also be connected to the roof 4 by gluing or the like, and the embodiments of the present application are not limited to this.
  • the accessory radiator 110 is arranged to be spaced apart from the antenna radiator 200 of the electronic device 20, and the signal is coupled from the antenna radiator 200, that is, the antenna radiator 200 couples the signal to the accessory radiator 110, and the RF connector 120 is coupled and connected to the antenna radiator 200 through the accessory radiator 110, and the RF connector 120 is connected to the external antenna 2;
  • the electronic device 20 can transmit or receive signals externally through the external antenna 2, and the external antenna 2 has a large gain and beam angle, thereby increasing the communication gain and beam angle of the electronic device 20 and improving the communication quality.
  • the back panel 311 may be rectangular, and the side panel 312 may include a first side panel 313 and a second side panel 314, wherein the first side panel 313 and the second side panel 314 respectively correspond to adjacent sides of the back panel 311, that is, the first side panel 313 and the second side panel 314 are adjacent and substantially perpendicular;
  • the first side panel 313 may be a side panel close to the antenna radiator 200, and the corresponding accessory radiator 110 is arranged on the first side panel 313, so that when the mobile phone is installed in the housing 310, the accessory radiator 110 can be close to the antenna radiator 200, and the arrangement is spaced apart to reduce the difficulty of installation.
  • the antenna radiator 200 can be arranged on the frame 231 at the top of the electronic device 20, so that when in use, the antenna radiator 200 faces the zenith direction to prevent external objects such as the user's head from blocking the signal.
  • the first side plate 313 can be the top side plate 312, so that the accessory radiator 110 and the antenna radiator 200 are close to each other.
  • the structure of the accessory radiator 110, the structure of the antenna radiator 200, and the positional relationship between the accessory radiator 110 and the antenna radiator 200 can be various, which will be described in detail below:
  • the antenna radiator 200 and the accessory radiator 110 may both extend along a first direction (e.g., the horizontal direction in FIG. 7 and FIG. 8 ), that is, the length direction of the antenna radiator 200 and the accessory radiator 110 is parallel to the first direction.
  • the first direction may be parallel to the extension direction of the mobile phone frame 231, so that the accessory radiator 110 may be substantially parallel to the frame 231 of the mobile phone.
  • the accessory radiator 110 may include a first end 1111 (left end in the orientation shown in FIG. 7 ) and a second end 1121 (right end in the orientation shown in FIG. 7 ) arranged opposite to each other along the first direction.
  • the antenna radiator 200 includes a third end 2611 (left end in the orientation shown in FIG. 7 ) and a fourth end 2621 (right end in the orientation shown in FIG. 7 ) arranged opposite to each other along the first direction, wherein the first end 1111 is arranged close to the third end 2611 relative to the second end 1121, and the second end 1121 is arranged close to the fourth end 2621 relative to the first end 1111.
  • the length of the accessory radiator 110 along the first direction may be substantially equal to the length of the antenna radiator 200 along the first direction, for example, the length difference is within ⁇ 10%.
  • the first end 1111 is substantially flush with the third end 2611
  • the second end 1121 is substantially flush with the fourth end 2621 along the first direction, for example, the offset difference in the first direction is within ⁇ 2 mm.
  • the projection of the first end 1111 substantially coincides with the projection of the third end 2611
  • the projection of the second end 1121 substantially coincides with the projection of the fourth end 2621 .
  • the third end 2611 may be an open end, or may be used as a feeding end of the antenna radiator 200 to connect to a feeding circuit of the electronic device 20.
  • the feeding circuit may include a radio frequency chip, a switch, and a matching path, the radio frequency chip is connected to the matching path through the switch, and the matching path may include capacitors, inductors, resistors, and other devices to achieve impedance matching.
  • the fourth end 2621 may be an open end, or the fourth end 2621 may be grounded through capacitors, inductors, resistors, and other devices to facilitate impedance matching.
  • the center of the antenna radiator 200 may be grounded. It is understood that the center of the antenna radiator 200 may be a geometric midpoint or an electrical midpoint (or an area within a certain range near the above midpoint).
  • the first end 1111 and the second end 1121 of the accessory radiator 110 may both be open ends.
  • the center or a position close to the center of the accessory radiator 110 may be connected to the inner conductor of the RF connector 120, and the connector body of the RF connector 120 may be grounded to achieve the connection between the RF connector 120 and the accessory radiator 110.
  • a grounding metal layer may be provided on the housing 310 shown in FIG. 2, and the connector body of the RF connector 120 may be connected to the grounding metal layer to achieve the grounding of the connector body.
  • the grounding metal layer may be provided on the side plate 312 or the back plate 311 of the housing 310.
  • the embodiment of the present application does not limit the position of the grounding metal layer, as long as the grounding of the connector body can be achieved.
  • the accessory radiator 110 includes a first accessory radiator 111 and a second accessory radiator 112, and the first accessory radiator 111 and the second accessory radiator 112 are spaced apart along a first direction so that a gap is formed between the first accessory radiator 111 and the second accessory radiator 112; the first accessory radiator 111 is disposed close to the third end 2611, and the second accessory radiator 112 is disposed close to the fourth end 2621, and accordingly, the first end 1111 is an end of the first accessory radiator 111 away from the second accessory radiator 112, and the second end 1121 is an end of the second accessory radiator 112 away from the first accessory radiator 111.
  • the first end 1111 and the second end 1121 can be open ends, and accordingly, the fifth end 1112 of the first accessory radiator 111 away from the first end 1111 (that is, the end of the first accessory radiator 111 close to the second accessory radiator 112) can be connected to the inner conductor of the RF connector 120, and the sixth end 1122 of the second accessory radiator 112 away from the second end 1121 (that is, the end of the second accessory radiator 112 close to the first accessory radiator 111) can be connected to the connector body of the RF connector 120; or, the fifth end 1112 of the first accessory radiator 111 away from the first end 1111 can be connected to the connector body of the RF connector 120, and the sixth end 1122 of the second accessory radiator 112 away from the second end 1121 can be connected to the inner conductor of the RF connector 120, so as to realize the connection between the accessory radiator 110 and the RF connector 120.
  • FIG9 is a graph showing the electric field and magnetic field distribution curves on the antenna radiator 200 and the accessory radiator 110 when the antenna radiator 200 couples a signal to the accessory radiator 110.
  • E1 is the electric field strength curve on the accessory radiator 110
  • H1 is the magnetic field strength curve on the accessory radiator 110
  • E2 is the electric field strength curve on the antenna radiator 200
  • H2 is the magnetic field strength curve on the antenna radiator 200.
  • the electric field strength points (third end 2611 and fourth end 2621) of the antenna radiator 200 are close to the electric field strength points (first end 1111 and second end 1121) of the accessory radiator 110, and the magnetic field strength points (approximately the center position) of the antenna radiator 200 are close to the magnetic field strength points (approximately the center position) of the accessory radiator 110, so that the antenna radiator 200 and the accessory radiator 110 are coupled with signals by magnetic coupling.
  • FIG10 is an S parameter curve diagram of the structure shown in FIG8 . It can be seen from FIG10 that the resonant frequency of the accessory radiator 110 and the antenna radiator 200 is about 2 GHz. Near the resonant frequency, the isolation between the accessory radiator 110 and the antenna radiator 200 is about -11.4 dB, that is, the signal loss between the antenna radiator 200 and the accessory radiator 110 is 11.4 dB.
  • the antenna radiator 200 and the accessory radiator 110 may both extend along the first direction, that is, the length direction of the antenna radiator 200 and the accessory radiator 110 is parallel to the first direction.
  • the first direction may be parallel to the extension direction of the mobile phone frame 231 (shown in FIG. 2 ), so that the accessory radiator 110 may be substantially parallel to the frame 231 of the mobile phone.
  • the length of the accessory radiator 110 is greater than the length of the antenna radiator 200.
  • the length in the first direction is greater than the length of the antenna radiator 200 along the first direction. Since the space between the accessory radiator 110 and the antenna radiator 200 has a certain dielectric constant, such as the internal structure of the electronic device 20 shown in FIG. 2 and the housing 310 have a certain dielectric constant, by making the length of the accessory radiator 110 greater than the length of the antenna radiator 200, the electrical length of the accessory radiator 110 can be made substantially equal to the electrical length of the antenna radiator 200.
  • the length of the accessory radiator 110 can be slightly larger than the length of the antenna radiator 200, and the difference between the length of the accessory radiator 110 and the length of the antenna radiator 200 can be reasonably set according to the dielectric constant of the space between the accessory radiator 110 and the antenna radiator 200.
  • the embodiment of the present application does not limit the difference between the length of the accessory radiator 110 and the length of the antenna radiator 200.
  • the length of the accessory radiator 110 is approximately 1/2 ⁇ 1/8 of the medium working wavelength, wherein the medium working wavelength corresponds to the working frequency of the antenna radiator 200, for example, specifically corresponds to the center frequency of the working frequency band of the antenna radiator 200.
  • the antenna radiator 200 generates a first resonance, the first resonance satellite transmission frequency band or the satellite reception frequency band.
  • the satellite transmission frequency band includes a 2 GHz frequency or the satellite reception frequency band includes a 2.2 GHz frequency.
  • the length of the accessory radiator 110 can be 30 mm-75 mm, that is, the length of the accessory radiator 110 along the first direction can be 30 mm-75 mm.
  • the accessory radiator 110 can be used to couple the signal of the working frequency band of the above-mentioned antenna radiator, such as the Tiantong satellite frequency band.
  • the accessory radiator 110 configured in this way can also be used to couple the cellular communication frequency band of the above-mentioned antenna radiator, and the working frequency band covers a wider range.
  • the length of the accessory radiator 110 can be 35mm-55mm.
  • the transmission (TX) frequency band in the Tiantong satellite frequency band can include 2GHz
  • the receiving (RX) frequency band can include 2.2GHz.
  • the external antenna 2 is used to generate a second resonance, and the second resonance covers the above-mentioned satellite transmission frequency band or the satellite reception frequency band.
  • the above-mentioned satellite transmission frequency band includes a 2 GHz frequency
  • the above-mentioned satellite reception frequency band includes a 2.2 GHz frequency.
  • the working frequency bands of the external antenna 2 and the antenna radiator 200 at least partially overlap, so that the antenna radiator 200 can send signals to the outside or receive signals through the external antenna 2.
  • the accessory radiator 110 may include a first end 1111 (the left end in the orientation shown in FIG. 11a ) and a second end 1121 (the right end in the orientation shown in FIG. 11a ) that are relatively arranged along the first direction.
  • the antenna radiator 200 includes a third end 2611 (the left end in the orientation shown in FIG. 11a ) and a fourth end 2621 (the right end in the orientation shown in FIG. 11a ) that are relatively arranged along the first direction, wherein the first end 1111 is arranged close to the third end 2611, and the second end 1121 is arranged close to the fourth end 2621.
  • the first end 1111 and the third end 2611 are arranged spaced apart along the first direction.
  • the projection of the first end 1111 is located outside the projection of the antenna radiator 200, that is, the first end 1111 extends in a direction away from the antenna radiator 200.
  • the electric field strength points (third end 2611 and fourth end 2621) of the antenna radiator 200 are close to the electric field strength points (first end 1111 and second end 1121) of the accessory radiator 110
  • the magnetic field strength points (center) of the antenna radiator 200 are close to the magnetic field strength points (center) of the accessory radiator 110, so that a larger energy storage field is formed between the accessory radiator 110 and the antenna radiator 200, and the signal is not easily coupled into the accessory radiator 110, resulting in a higher signal loss between the antenna radiator 200 and the accessory radiator 110.
  • the energy storage field strength between the antenna radiator 200 and the accessory radiator 110 is related to the distance between the antenna radiator 200 and the accessory radiator 110. If the distance is large, the energy storage field strength is weak, and if the distance is small, the energy storage field strength is strong. In some embodiments, due to the space limitation of the accessory installation, the distance between the antenna radiator 200 and the accessory radiator 110 is not greater than 3mm, for example, the distance between the antenna radiator 200 and the accessory radiator 110 is within the range of 1mm-3mm; for example, in the implementation mode where the shell is a mobile phone shell, the distance between the antenna radiator 200 and the accessory radiator 110 is within 1mm-2mm; for example, in other implementation modes, the distance between the antenna radiator 200 and the accessory radiator 110 is 1mm-3mm.
  • the above-mentioned space limitation makes the energy storage field strength between the antenna radiator 200 and the accessory radiator 110 at a certain level, and the above-mentioned energy storage field strength can be enhanced or weakened by adjusting the relative position relationship between the antenna radiator 200 and the accessory radiator 110 (for example, relative alignment, or relative offset).
  • the distance between the antenna radiator 200 and the accessory radiator 110 is in the range of 1mm-3mm.
  • the signal loss between the antenna radiator 200 and the accessory radiator 110 is low, and it is easy to realize a light and thin design of the accessory.
  • the distance between the accessory radiator 110 and the inner wall of the housing 30 (the inner wall of the accommodating cavity 320) is 1mm-3mm.
  • This arrangement can also facilitate the realization of a light and thin design of the accessory while ensuring that the signal loss between the antenna radiator 200 and the accessory radiator 110 is low.
  • the projection of the third end 2611 can be located between the projection of the first end 1111 and the midpoint of the accessory radiator 110, that is, the third end 2611 corresponds to the accessory radiator 110 between the first end 1111 and the midpoint, and the third end 2611 can be set close to the midpoint of the accessory radiator 110, so that the electric field strength point of the antenna radiator 200 can be close to the magnetic field strength point of the accessory radiator 110 to form magneto-electric coupling.
  • the second end 1121 and the fourth end 2621 are spaced apart along the first direction.
  • Such a configuration allows another electric field strength point (the fourth end 2621) of the antenna radiator 200 and another electric field strength point (the second end 1121) of the accessory radiator 110 to be staggered along the first direction, which can further weaken the energy storage field between the antenna radiator 200 and the accessory radiator 110, and further reduce the signal loss between the antenna radiator 200 and the accessory radiator 110.
  • the projection of the second end 1121 is located inside the projection of the antenna radiator 200, that is, the fourth end 2621 extends along the first direction away from the accessory radiator 110; accordingly, the accessory radiator 110 is offset as a whole relative to the antenna radiator 200 (that is, the accessory radiator 110 is biased to the left).
  • another electric field strength point (second end 1121) of the accessory radiator 110 and another electric field strength point (fourth end 2621) of the antenna radiator 200 are staggered along the first direction, and the second end 1121 is close to the center (magnetic field strength point) of the antenna radiator 200, so that magneto-electric coupling is formed between the second end 1121 and the corresponding antenna radiator 200; that is, magneto-electric coupling is formed between the third end 2611 and the corresponding accessory radiator 110, and magneto-electric coupling is formed between the second end 1121 and the corresponding antenna radiator 200, and magnetic coupling is formed at the position between the two magneto-electric couplings, which can further weaken the energy storage field between the antenna radiator 200 and the accessory radiator 110, making it easier for the signal to be coupled into the accessory radiator 110, thereby further reducing the signal loss between the antenna radiator 200 and the accessory radiator 110.
  • the projection of the second end 1121 is located between the midpoint of the antenna radiator 200 and the projection of the fourth end 2621, that is, the second end 1121 corresponds to the antenna radiator 200 between the fourth end 2621 and the midpoint, and the second end 1121 can be set close to the midpoint of the antenna radiator 200 so that the electric field strength point of the accessory radiator 110 can be close to the magnetic field strength point of the antenna radiator 200 to form magnetoelectric coupling.
  • the projection of the second end 1121 may also be located outside the projection of the antenna radiator 200, that is, the second end 1121 extends along the first direction away from the antenna radiator 200; such a configuration may also allow another electric field strength point (second end 1121) of the accessory radiator 110 and another electric field strength point (fourth end 2621) of the antenna radiator 200 to be staggered along the first direction, and the fourth end 2621 is close to the center (magnetic field strength point) of the accessory radiator 110, so that magneto-electric coupling is formed between the fourth end 2621 and the corresponding accessory radiator 110, which may further weaken the energy storage field between the antenna radiator 200 and the accessory radiator 110, so that the signal is more easily coupled into the accessory radiator 110, thereby further reducing the signal loss between the antenna radiator 200 and the accessory radiator 110.
  • the minimum distance between the first end 1111 and the third end 2611 along the first direction and the minimum distance between the second end 1121 and the fourth end 2621 along the first direction may be approximately equal or unequal, and the present application does not impose any limitation on this.
  • Figures 15a, 16a, and 17a are schematic diagrams of the structures corresponding to when the minimum distance between the first end 1111 and the third end 2611 along the first direction is 5mm, 10mm, and 15mm, respectively;
  • Figures 15b, 16b, and 17b are S-curve diagrams corresponding to when the minimum distance between the first end 1111 and the third end 2611 along the first direction is 5mm, 10mm, and 15mm, respectively. It can be seen from Figure 15b that when the minimum distance between the first end 1111 and the third end 2611 along the first direction is 5mm, the isolation between the accessory radiator 110 and the antenna radiator 200 is approximately -3.1dB, that is, the signal loss between the accessory radiator 110 and the antenna radiator 200 is approximately 3.1dB. As shown in FIG.
  • the isolation between the accessory radiator 110 and the antenna radiator 200 is about -1.5 dB, that is, the signal loss between the accessory radiator 110 and the antenna radiator 200 is about 1.5 dB.
  • the isolation between the accessory radiator 110 and the antenna radiator 200 is about -1.0 dB, that is, the signal loss between the accessory radiator 110 and the antenna radiator 200 is about 1.0 dB.
  • the signal loss between the accessory radiator 110 and the antenna radiator 200 decreases, and the influence of the distance on the signal loss gradually decreases.
  • the signal loss can be reduced.
  • the signal loss between the antenna radiator 200 and the accessory radiator 110 is reduced from 11.4 dB to below 3.1 dB.
  • FIG15c is an antenna matching diagram of the communication device 1 shown in FIG15a, where port a is connected to port m of the test device through the first capacitor C1, and port a is also grounded through the first inductor R1; port b can be grounded through the third inductor R3; port c is connected to port n of the test device through the second capacitor C2, and port n is also grounded through the second inductor R2.
  • Reasonable setting of the parameters of the first capacitor C1, the second capacitor C2, the first inductor R1, the second inductor R2, and the third inductor R3 can achieve antenna matching.
  • the first capacitor C1 can be about 2pF
  • the second capacitor C2 can be about 2.8pF
  • the first inductor R1 can be about 7nH
  • the second inductor R2 can be about 1.7nH
  • the third inductor R3 can be about 20nH.
  • port b can be grounded through a capacitor, and the grounding device can be reasonably selected according to the impedance matching situation.
  • the test equipment can be a device for testing the accessory radiator 110 and the antenna radiator 200 to obtain an S curve, and the embodiment of the present application is not limited to this.
  • Figure 16c is the antenna matching diagram of the communication device 1 shown in Figure 16a, where port a is connected to port m of the test device; port b is grounded through the second inductor R2; port c is connected to port n of the test device through the first capacitor C1, and port n is also grounded through the first inductor R1.
  • Reasonable setting of the parameters of the first capacitor C1, the first inductor R1, and the second inductor R2 can achieve antenna matching.
  • the first capacitor C1 can be about 2.8pF
  • the first inductor R1 can be about 2.8nH
  • the second inductor R2 can be about 20nH.
  • port b can be grounded through a capacitor, and the grounding device can be reasonably selected according to the impedance matching situation.
  • FIG17c is an antenna matching diagram of the communication device 1 shown in FIG17a, where port a is connected to port m of the test device; port c is connected to port n of the test device through the first capacitor C1, and port n is also grounded through the first inductor R1.
  • Reasonable setting of the parameters of the first capacitor C1 and the first inductor R1 can achieve antenna matching.
  • the first capacitor C1 can be about 4pF, and the first inductor R1 can be about 5nH.
  • the minimum distance between the first end 1111 and the third end 2611 along the first direction may be greater than 3 mm (such as 4 mm, 5 mm, 10 mm, 15 mm, 20 mm, etc.).
  • 3 mm such as 4 mm, 5 mm, 10 mm, 15 mm, 20 mm, etc.
  • the isolation between the antenna radiator 200 and the accessory radiator 110 is close to -5.6 dB (loss is 5.6 dB).
  • the loss is less than or equal to 5 dB, the effect of the loss on the communication quality is almost negligible, and the signal coupling between the antenna radiator 200 and the accessory radiator 110 is good.
  • the minimum distance between the first end 1111 and the third end 2611 along the first direction is greater than 3 mm, it can be ensured that the signal loss between the antenna radiator 200 and the accessory radiator 110 is less than 5 dB, further reducing the signal loss and improving the communication quality.
  • the accessory 10 further includes a dielectric plate 130, and the accessory radiator 110 is stacked on the dielectric plate 130.
  • the dielectric plate 130 can carry the accessory radiator 110 to facilitate the manufacture and installation of the accessory radiator 110.
  • the accessory radiator 110 may include a metal plate, and accordingly, the metal plate may be connected to the dielectric plate 130 by gluing, and of course, the metal plate may also be formed on the dielectric plate 130 by electroplating.
  • the accessory radiator 110 may include a conductive coating, and accordingly, the accessory radiator 110 may be formed on the dielectric plate 130 by coating.
  • the dielectric plate 130 may be located between the accessory radiator 110 and the antenna radiator 200.
  • the dielectric plate 130 may be disposed between the frame and the accessory radiator 110.
  • the dielectric plate 130 has a certain dielectric constant.
  • the material of the dielectric plate 130 may include FR4, etc. The embodiment of the present application does not limit the material of the dielectric plate 130.
  • the dielectric plate 130 can be attached to the shell 310, and accordingly, the RF connector 120 can be connected to the shell 310 to achieve fixation between the RF connector 120 and the shell 310.
  • the inner side of the side plate 312 of the shell 310 can be provided with a mounting groove, and the dielectric plate 130 can be disposed in the mounting groove so that the inner wall of the accommodating groove is roughly flat.
  • a mounting hole can be provided on the side plate 312 provided with the mounting groove, and the RF connector 120 can be disposed in the mounting hole.
  • the antenna radiator 200 may be disposed on the frame 231. Accordingly, the first insulating break 2323 and the second insulating break 2324 may be disposed at intervals on the frame 231.
  • the antenna radiator 200 includes at least a portion of the conductive frame 231 between the first insulating break 2323 and the second insulating break 2324. Using a portion of the frame 231 as the antenna radiator 200 may improve the compactness of the structure of the electronic device 20 and may also prevent the frame 231 outside the first insulating break 2323 and the second insulating break 2324 from affecting the antenna radiator 200.
  • the first end 1111 may be disposed close to the first insulating break 2323.
  • the projection of the accessory radiator 110 on the frame 231 may cover The first insulating break 2323 is covered; and the projection of the accessory radiator 110 on the frame 231 is spaced apart from the second insulating break 2324. Since other communication antennas are generally arranged on the frame 231, the projection of the accessory radiator 110 on the frame 231 is spaced apart from the second insulating break 2324, which can prevent the accessory radiator 110 from affecting the operation of other communication antennas.
  • the antenna radiator 200 is disposed on the top frame of the electronic device, for example, the top edge.
  • the first insulating break 2323 and the second insulating break 2324 are breaks opened on the top edge of the electronic device and filled with an insulating medium.
  • the first insulating break 2323 and the second insulating break 2324 can be symmetrically opened on the top edge of the electronic device. Opening the break can improve the radiation performance of the antenna radiator 200. Opening symmetrical breaks can further ensure the electrical symmetry of the antenna radiator 200 while ensuring the aesthetic appearance, thereby enhancing the directivity and system efficiency of the antenna radiator 200 when operating as a satellite antenna.
  • the antenna radiator 200 can be arranged on the frame 231 at the top of the electronic device 20, so that when in use, the antenna radiator 200 faces the zenith direction to avoid external objects such as the user's head blocking the signal.
  • the shell 30 includes a side panel 312 arranged around the back panel 311, and the side panel includes adjacent first side panels 313 and second side panels 314, wherein the first side panel 313 can be the side panel 312 located at the top of the shell 30, so that when the electronic device 20 is placed in the shell 30, the first side panel 313 is close to the frame 231 on which the antenna radiator 200 is arranged, so that the accessory radiator 110 and the antenna radiator 200 are close to each other.
  • the accessory radiator 110 is offset relative to the center of the first side plate, that is, the accessory radiator 110 is biased.
  • the center of the first side plate 313 is the midpoint of the first side plate 313 along its length direction. It can be understood that in the implementation mode in which the accessory radiator 110 includes a first end 1111 and a second end 1121, the center offset of the accessory radiator 110 relative to the first side plate can be that the distances from the first end 1111 and the second end 1121 to the center are not equal.
  • the difference in distance from the first end 1111 and the second end 1121 to the center can be greater than 1.5 mm (such as 2 mm, 3 mm, etc.).
  • the antenna radiator of the electronic device can be disposed on the top edge of the electronic device, and centered (for example, offset by no more than 5%) on the top edge.
  • at least a first slit and a second slit are symmetrically (for example, the offset does not exceed 5%) provided on the top frame of the electronic device, and the conductive frame between the first and second slits is used as the antenna radiator; or for example, the antenna radiator is centrally arranged on the inner surface of the top frame of the electronic device (for example, the offset does not exceed 5%).
  • the first end 1111 and the third end 2611 can be arranged spaced apart along the first direction, that is, the electric field strength point of the antenna radiator 200 and the electric field strength point of the accessory radiator 110 are staggered along the first direction, and the third end 2611 is close to the center of the accessory radiator 110, so that the third end 2611 and the corresponding accessory radiator 110 form a magnetoelectric coupling, thereby reducing the signal loss between the antenna radiator 200 and the accessory radiator 110.
  • the accessory radiator 110 includes a first accessory radiator 111 and a second accessory radiator 112, and the first accessory radiator 111 and the second accessory radiator 112 are spaced apart along a first direction so that a gap is formed between the first accessory radiator 111 and the second accessory radiator 112; the first accessory radiator 111 is disposed close to the third end 2611, and the second accessory radiator 112 is disposed close to the fourth end 2621, and accordingly, the first end 1111 is an end of the first accessory radiator 111 away from the second accessory radiator 112, and the second end 1121 is an end of the second accessory radiator 112 away from the first accessory radiator 111.
  • the first end 1111 and the second end 1121 can be open ends, and accordingly, the fifth end 1112 of the first accessory radiator 111 away from the first end 1111 can be connected to the inner conductor of the RF connector 120, and the sixth end 1122 of the second accessory radiator 112 away from the second section can be connected to the connector body of the RF connector 120; or, the fifth end 1112 of the first accessory radiator 111 away from the first end 1111 can be connected to the connector body of the RF connector 120, and the sixth end 1122 of the second accessory radiator 112 away from the second section can be connected to the inner conductor of the RF connector 120, so as to realize the connection between the accessory radiator 110 and the RF connector 120.
  • the projection of the first end 1111 is located within the projection of the antenna radiator 200; that is, the third end 2611 extends along the first direction away from the accessory radiator 110.
  • the electric field strength point (first end 1111) of the accessory radiator 110 can be staggered with the electric field strength point of the antenna radiator 200, thereby reducing the signal loss between the accessory radiator 110 and the antenna radiator 200.
  • the antenna radiator 200 includes a main radiator 201 and a parasitic radiator 202 arranged in a first direction
  • the main radiator 201 includes a third end 2611 and a fourth end 2621
  • the third end 2611 is arranged close to the first end 1111
  • the parasitic radiator 202 is located on a side of the third end 2611 away from the fourth end 2621
  • the main radiator 201 is used to couple a signal to the parasitic radiator 202.
  • the projection of the first end 1111 is located within the projection of the parasitic radiator 202;
  • the parasitic radiator 202 may include a seventh end 203 and an eighth end 204 arranged along the first direction, the eighth end 204 is arranged close to the third end 2611, and the first end 1111 corresponds to the parasitic radiator 202 between the seventh end 203 and the eighth end 204.
  • the first end 1111 (electric field strength point) can be staggered with the eighth end 204 (electric field strength point) and the third end 2611 (electric field strength point), and the eighth end 204 (electric field strength point) and the third end 2611 (electric field strength point) are both close to the center (magnetic field strength point) of the accessory radiator 110, so that the first end 1111 (electric field strength point) forms magneto-electric coupling with the eighth end 204 (electric field strength point) and the third end 2611 (electric field strength point), which can increase the area of magneto-electric coupling, so as to further weaken the energy storage field between the antenna radiator 200 and the parasitic radiator 202, and further reduce the signal loss between the antenna radiator 200 and the parasitic radiator 202.
  • the second end 1121 and the fourth end 2621 are arranged to be spaced apart along the first direction.
  • Such an arrangement allows the electric field strength point of the antenna radiator 200 (the fourth end 2621) and the electric field strength point of the accessory radiator 110 (the second end 1121) to be staggered along the first direction, which can further weaken the energy storage field between the antenna radiator 200 and the accessory radiator 110, and further reduce the signal loss between the antenna radiator 200 and the accessory radiator 110.
  • the projection of the second end 1121 is located inside the projection of the antenna radiator 200 , that is, the fourth end 2621 extends along the first direction away from the accessory radiator 110 .
  • another electric field strength point (second end 1121) of the accessory radiator 110 and another electric field strength point (fourth end 2621) of the antenna radiator 200 are staggered along the first direction, and the second end 1121 is close to the center (magnetic field strength point) of the antenna radiator 200, so that magneto-electric coupling is formed between the second end 1121 and the corresponding antenna radiator 200; that is, magneto-electric coupling is formed between the third end 2611 and the corresponding accessory radiator 110, and magneto-electric coupling is formed between the second end 1121 and the corresponding antenna radiator 200, and magnetic coupling is formed at the position between the two magneto-electric couplings, which can further weaken the energy storage field between the antenna radiator 200 and the accessory radiator 110, making it easier for the signal to be coupled into the
  • the projection of the second end 1121 is located between the midpoint of the main radiator 201 and the projection of the fourth end 2621, that is, the second end 1121 corresponds to the main radiator 201 between the fourth end 2621 and the midpoint, and the second end 1121 can be set close to the midpoint of the main radiator 201 so that the electric field strength point of the accessory radiator 110 can be close to the magnetic field strength point of the main radiator 201 to form magneto-electric coupling.
  • the projection of the second end 1121 may also be located outside the projection of the antenna radiator 200, that is, the second end 1121 extends along the first direction away from the antenna radiator 200; such a configuration may also allow another electric field strength point (second end 1121) of the accessory radiator 110 and another electric field strength point (fourth end 2621) of the antenna radiator 200 to be staggered along the first direction, and the fourth end 2621 is close to the center (magnetic field strength point) of the accessory radiator 110, so that magneto-electric coupling is formed between the fourth end 2621 and the corresponding accessory radiator 110, which can further weaken the energy storage field between the antenna radiator 200 and the accessory radiator 110, making it easier for the signal to be coupled into the accessory radiator 110, thereby further reducing the signal loss between the antenna radiator 200 and the accessory radiator 110.
  • the parasitic radiator 202 and the main radiator 201 may be arranged spaced apart along the first direction, the seventh end 203 may be a ground end, and the eighth end 204 may be an open end.
  • the parasitic radiator 202 and the main radiator 201 may also be an integral structure, and accordingly, the eighth end 204 is connected to the third end 2611, and accordingly, the seventh end 203 may be an open end, and the eighth end 204 is a ground end.
  • FIGS. 25a, 26a and 27a are schematic diagrams of the structures corresponding to the implementation of the antenna radiator 200 including the main radiator 201 and the parasitic radiator 202 when the minimum distance between the first end 1111 and the third end 2611 along the first direction is 5 mm, 10 mm and 15 mm respectively;
  • FIGS. 25b, 26b and 27b are S-curve diagrams corresponding to the implementation of the antenna radiator 200 including the main radiator 201 and the parasitic radiator 202 when the minimum distance between the first end 1111 and the third end 2611 along the first direction is 5 mm, 10 mm and 15 mm respectively. It can be seen from FIG.
  • the isolation between the accessory radiator 110 and the antenna radiator 200 is approximately -1.9 dB, that is, the signal loss between the accessory radiator 110 and the antenna radiator 200 is approximately 1.9 dB.
  • the isolation between the accessory radiator 110 and the antenna radiator 200 is about -1.4 dB, that is, the signal loss between the accessory radiator 110 and the antenna radiator 200 is about 1.4 dB.
  • Figure 25c is an antenna matching diagram of the communication device 1 shown in Figure 25a, where port a is connected to port m of the test device; port c is connected to port n of the test device through the first capacitor C1, and port n is also grounded through the first inductor R1; port d is grounded through the second inductor R2.
  • Reasonable setting of the parameters of the first capacitor C1, the first inductor R1, and the second inductor R2 can achieve antenna matching.
  • the first capacitor C1 can be about 2.5pF
  • the first inductor R1 can be about 2.5nH
  • the second inductor R2 can be about 5nH.
  • Figure 26c is the antenna matching diagram of the communication device 1 shown in Figure 26a, where port a is connected to port m of the test device through the second capacitor C2; port c is connected to port n of the test device through the first capacitor C1, and port n is also grounded through the first inductor R1; port d is grounded through the second inductor R2.
  • Reasonable setting of the parameters of the first capacitor C1, the second capacitor C2, the first inductor R1, and the second inductor R2 can achieve antenna matching.
  • the first capacitor C1 can be about 4pF
  • the second capacitor C2 can be about 4pF
  • the first inductor R1 can be about 3nH
  • the second inductor R2 can be about 5nH.
  • the third end 2611 can be used as the feeding end of the antenna radiator 200 to connect to the feeding circuit of the electronic device 20.
  • the feeding circuit 270 may include an antenna feeding point 271 (such as a radio frequency chip), a switch 272, and a matching path 273.
  • the antenna feeding point 271 is connected to the matching path 273 through the switch 272.
  • the matching path 273 may include capacitors, inductors, resistors, and other devices to achieve impedance matching.
  • the fourth end 2621 may be an open end, or the fourth end 2621 may be grounded through capacitors, inductors, resistors, and other devices to facilitate impedance matching.
  • the antenna radiator 200 may be provided with a grounding point, and the grounding point may be located at the center of the antenna radiator 200, or near the center.
  • the grounding point of the antenna radiator 200 may be located within the middle 1/2 of the length of the antenna radiator 200, and the distance between the grounding point and the two open ends of the antenna radiator 200 is greater than 1/4 of the length of the antenna radiator 200.
  • the center of the antenna radiator 200 may be a geometric midpoint or an electrical midpoint (or an area within a certain range near the above midpoint).
  • the antenna radiator 200 may not be provided with a grounding point, and the embodiments of the present application are not limited to this.
  • the accessory radiator 110 may also be a linear antenna, and the accessory radiator 110 may include a whole conductor, and the first end 1111 and the second end 1121 may both be open ends.
  • the center or a position close to the center of the accessory radiator 110 may be connected to the inner conductor of the RF connector 120, and the connector body of the RF connector 120 may be grounded to achieve the connection between the RF connector 120 and the accessory radiator 110.
  • a grounding metal layer may be provided on the housing 310, and the connector body of the RF connector 120 may be connected to the grounding metal layer to achieve the grounding of the connector body; illustratively, the grounding metal layer may be provided on the side plate 312 or the back plate 311 of the housing 310, and the embodiment of the present application does not limit the position of the grounding metal layer, as long as the grounding of the connector body can be achieved.
  • the difference from the implementation shown in FIG. 11a and FIG. 11b is that the accessory radiator 110 and the antenna radiator 200 are both wire antennas, the first end 1111 and the second end 1121 of the accessory radiator 110 are open ends, and a grounding point is provided on the accessory radiator 110, and the grounding point is located between the first end 1111 and the second end 1121.
  • a grounding metal layer may be provided on the housing 310, and the grounding point of the accessory radiator 110 may be connected to the grounding metal layer through a wire to achieve grounding of the grounding point of the accessory radiator 110.
  • the grounding metal layer may be provided on the side plate 312 or the back plate 311 of the housing 310 as shown in FIG. 2, and the embodiment of the present application does not limit the position of the grounding metal layer.
  • the grounding point of the accessory radiator 110 may be the center of the accessory radiator 110 or a certain distance from the center (eg, the distance from the center is within 10% of the length of the accessory radiator 110 ), and this embodiment of the present application does not limit this.
  • the inner conductor of the RF connector 120 shown in Figure 2 can be connected to the center of the accessory radiator 110 or a position at a certain distance from the center (such as the distance from the center is within 10% of the length of the accessory radiator 110), and the connector body can be connected to the grounded metal layer to achieve connection between the RF connector 120 and the accessory radiator 110.
  • the third end 2611 of the antenna radiator 200 can be a feeding end
  • the fourth end 2621 of the antenna radiator 200 can be an open end
  • the center or a position close to the center of the antenna radiator 200 can be grounded so that the current directions on both sides of the antenna radiation center are the same.
  • the accessory radiator 110 is a slot antenna (Slot), and the accessory radiator 110 includes a first accessory radiator 111 and a second accessory radiator 112 arranged at intervals along a first direction.
  • the first accessory radiator 111 and the second accessory radiator 112 can be connected to the first floor and form a slot with a gap.
  • first end 1111 One end of the first accessory radiator 111 away from the second accessory radiator 112 is a first end 1111, and one end of the second accessory radiator 112 away from the first accessory radiator 111 is a second end 1121.
  • the first end 1111 and the second end 1121 are both ground ends.
  • the first end 1111 and the second end 1121 may both be coupled to the first ground plane to achieve grounding of the first end 1111 and the second end 1121 .
  • the first floor, the first accessory radiator 111, and the second accessory radiator 112 can all be arranged on the first side plate 313, the first floor, the first accessory radiator 111, and the second accessory radiator 112 can be located in the same plane, and the first floor, the first accessory radiator 111, and the second accessory radiator 112 can be an integrated structure to simplify the difficulty of making accessories.
  • the first floor can also be arranged at other positions of the shell 310, and the embodiment of the present application is not limited to this.
  • a first gap 113 is formed between the first accessory radiator 111 and the second accessory radiator 112, an end of the first accessory radiator 111 away from the first end 1111 is the fifth end 1112, an end of the second accessory radiator 112 away from the second end 1121 is the sixth end 1122, and a first gap 113 is formed between the fifth end 1112 and the sixth end 1122.
  • the inner conductor of the RF connector 120 shown in Figure 2 can be connected to the fifth end 1112, and the connector body of the RF connector 120 can be connected to the sixth end 1122; or, the inner conductor of the RF connector 120 is connected to the sixth end 1122, and the connector body of the RF connector 120 is connected to the fifth end 1112, so as to realize the connection between the RF connector 120 and the accessory radiator.
  • the antenna radiator 200 may also be a slot antenna, and the antenna radiator 200 includes a first antenna radiator 261 and a second antenna radiator 262 arranged at intervals along a first direction, an end of the first antenna radiator 261 away from the second antenna radiator 262 is a third end 2611, and an end of the second antenna radiator 262 away from the first antenna radiator 261 is a fourth end 2621; the third end 2611 and the fourth end 2621 are both grounded ends.
  • a second bottom plate is provided on the frame 231 or the PCB, and the first antenna radiator 261 and the second antenna radiator 262 may be coupled and connected to the second floor to form a slot with a gap.
  • the third end 2611 and the fourth end 2621 may be connected to the second floor to achieve grounding.
  • a second gap 263 is formed between the first antenna radiator 261 and the second antenna radiator 262, the end of the first antenna radiator 261 away from the third end 2611 is the ninth end 2612, the end of the second antenna radiator 262 away from the fourth end 2621 is the tenth end 2622, and a second gap 263 is formed between the ninth end 2612 and the tenth end 2622.
  • the first slit 113 and the second slit 263 are arranged at intervals along the first direction, that is, the first slit 113 and the second slit 263 are arranged at intervals along the length direction of the accessory radiator 110 .
  • the minimum distance between the first slot 113 and the third end 2611 is smaller than the minimum distance between the second slot 263 and the third end 2611, so that the first slot 113 and the second slot 263 are arranged at intervals along the first direction, and the first slot 113 is closer to the third end 2611.
  • the minimum distance between the first slot 113 and the third end 2611 is smaller than the minimum distance between the second slot 263 and the third end 2611, so that the lengths of the first accessory radiator 111 and the second accessory radiator 112 can be substantially equal, so as to prevent the lengths of the first accessory radiator 111 and the second accessory radiator 112 from being too large or too small.
  • FIG. 32 and FIG. 33 are different from the implementation shown in FIG. 11a and FIG. 11b in that the accessory radiator 110 is a slot antenna (Slot), the first end 1111 and the second end 1121 of the accessory radiator 110 are both grounded ends, and the accessory radiator 110 can be coupled to the first floor to form a closed slot.
  • the first end 1111 and the second end 1121 can be coupled to the first floor to achieve grounding of the first end 1111 and the second end 1121.
  • the first floor, the first accessory radiator 111, and the second accessory radiator 112 can all be arranged on the first side plate 313, the first floor, the first accessory radiator 111, and the second accessory radiator 112 can be located in the same plane, and the first floor, the first accessory radiator 111, and the second accessory radiator 112 can be an integrated structure to simplify the difficulty of making the accessory.
  • the first floor can also be arranged at other positions of the shell 310, and the embodiment of the present application is not limited to this.
  • the antenna radiator 200 may also be a slot antenna, and the third end 2611 and the fourth end 2621 of the antenna radiator 200 are both grounded terminals.
  • a second floor is provided on the frame 231 or PCB shown in FIG3 , and the antenna radiator 200 may be coupled and connected to the second floor to form a closed slot.
  • the third end 2611 and the fourth end 2621 may be coupled and connected to the second floor to achieve grounding.
  • the inner conductor of the RF connector 120 shown in FIG2 may be connected to the accessory radiator 110 between the center and the first end 1111, or the inner conductor may be connected to the accessory radiator 110 between the center and the second end 1121.
  • the connector body may be connected to the first floor to achieve connection between the RF connector 120 and the accessory radiator 110.
  • FIG. 34a and FIG. 34b are schematic diagrams of the structure of the common mode mode of an antenna and the distribution of the corresponding current and electric field.
  • FIG. 35a and FIG. 35b are schematic diagrams of the differential mode mode of an antenna.
  • the left and right ends of the antenna radiator in Figures 34a and 35a are open ends, and their common mode mode and differential mode can be respectively referred to as line common mode mode and line differential mode.
  • Figures 36a and 36b are schematic diagrams of the structure of a common mode mode of an antenna and the corresponding distribution of current, electric field and magnetic current.
  • Figures 37a and 37b are schematic diagrams of the structure of a differential mode mode of an antenna and the corresponding distribution of current, electric field and magnetic current.
  • the left and right ends of the antenna radiator in Figures 36a and 37a are grounded, for example, coupled to the floor to achieve grounding, and their common mode mode and differential mode can be respectively referred to as slot common mode mode and slot differential mode.
  • CM mode common mode mode
  • DM mode dual mode mode mode
  • FIG34a shows that the radiator 40 of the antenna is open at both ends and is connected to a feeding circuit (not shown) at the middle position 41.
  • the feeding form of the radiator 40 adopts symmetrical feed.
  • the feeding circuit can be connected to the middle position 41 of the radiator 40 through a feeding line 42.
  • symmetrical feeding can be understood as one end of the feeding circuit is connected to the radiator, and the other end is coupled to the floor to achieve grounding, wherein the connection point (feeding point) between the feeding circuit and the radiator 40 is located at the center of the radiator, wherein the center of the radiator can be, for example, the midpoint of the geometric structure, or the midpoint of the electrical length (or an area within a certain range near the above midpoint).
  • the middle position 41 of the radiator 40 may be, for example, the geometric center of the radiator or the midpoint of the electrical length of the radiator.
  • the feed line 42 is connected to the radiator 40 via a connector such as a spring, and the connection between the connector and the radiator 40 covers the middle position 41.
  • FIG34b shows the current and electric field distribution of the antenna 40.
  • the current is distributed in opposite directions on both sides of the middle position 41, for example, symmetrically; the electric field is distributed in the same direction on both sides of the middle position 41.
  • the current at the feeder 42 is distributed in the same direction.
  • the feeding shown in FIG34b can be called line CM feeding.
  • the antenna mode shown in FIG34b can be called a line CM mode (it can also be referred to as a CM mode for short.
  • the CM mode refers to a line CM mode).
  • the current and electric field shown in FIG34b can be respectively referred to as the current and electric field of the line CM mode.
  • the current is stronger at the middle position 41 of the radiator 40 (the current is stronger near the middle position 41 of the radiator 40), and weaker at both ends of the radiator 40, as shown in FIG34b.
  • the electric field is weaker at the middle position 41 of the radiator 40, and stronger at both ends of the antenna 40.
  • the current thereon is distributed inversely on the radiator, and the current amplitude is large in the middle and small at both ends of the radiator, then the antenna mode corresponds to the line common mode.
  • FIG34c is a current curve of the accessory radiator 110 in FIG28 , in which the distance between the curve and the accessory radiator 110 is positively correlated with the current amplitude.
  • the first end 1111 and the second end 1121 of the accessory radiator 110 are open ends, the current is reversely distributed in the accessory radiator 110, the current amplitude is large in the middle and small at both ends on the radiator, and the antenna mode of the accessory radiator 110 corresponds to the line common mode.
  • the antenna mode of the corresponding antenna radiator 200 also corresponds to the line common mode.
  • the left and right ends of the radiator 50 are open ends, and a feeding circuit is connected at a middle position 51.
  • the feeding form of the radiator 50 adopts anti-symmetrical feed.
  • One end of the feeding circuit is connected to a part of the radiator 50 through a feeding line 52, and the other end of the feeding circuit is connected to another part of the radiator 50 through the feeding line 52.
  • the middle position 51 may include the geometric center of the radiator 50.
  • the "center antisymmetric feeding" mentioned in the embodiments of the present application can be understood as that the positive and negative poles of the feeding unit are respectively connected to two connection points near the above-mentioned midpoint of the radiator.
  • the signals output by the positive and negative poles of the feeding unit have the same amplitude and opposite phases, for example, the phase difference is 180° ⁇ 10°.
  • FIG35b shows the current and electric field distribution of the radiator 50.
  • the current is distributed in the same direction on both sides of the middle position 51 of the radiator 50, for example, in an anti-symmetrical distribution; the electric field is distributed in opposite directions on both sides of the middle position 51.
  • the current at the feeder 52 is distributed in opposite directions.
  • the feeding shown in FIG35a can be called line DM feeding.
  • the antenna mode shown in FIG35b can be called a line DM mode (it can also be referred to as a DM mode for short, for example, for a line antenna, the DM mode refers to a line DM mode).
  • the current and electric field shown in FIG35b can be respectively referred to as the current and electric field of the line DM mode.
  • the current is stronger at the middle position 51 of the antenna 50 (the current is stronger near the middle position 51 of the antenna 50) and weaker at both ends of the antenna 50, as shown in FIG35b.
  • the electric field is weaker at the middle position 51 of the antenna 50 and stronger at both ends of the line antenna 50.
  • the antenna mode corresponds to the line differential mode.
  • FIG35c is a current curve of the accessory radiator 110 in FIG11a and FIG21.
  • the distance between the curve and the accessory radiator 110 is positively correlated with the current amplitude.
  • FIG35c shows that the first end 1111 and the second end 1121 of the accessory radiator 110 are open ends, and the current on the accessory radiator 110 is distributed in the same direction on the radiator.
  • the current amplitude is large in the middle and small at both ends on the radiator. Therefore, the antenna mode of the accessory radiator 110 corresponds to the line differential mode mode. Similarly, the antenna mode of the corresponding antenna radiator 200 also corresponds to the line differential mode mode.
  • the radiator of the antenna shown in FIG. 36a has a hollow slot or gap 61, or it can be regarded that the radiator 60 of the antenna and the floor (such as the ground layer of the PCB) enclose the slot or slot 61.
  • the slot 61 can be formed by cutting a slot on the floor.
  • the slot 61 can be enclosed by coupling the two ends of the radiator 60 with the floor.
  • An opening 62 is provided on one side of the slot 61, and the opening 62 can be specifically opened in the middle position of the side.
  • the middle position of the side of the slot 61 can be, for example, the geometric midpoint of the radiator 60, or the midpoint of the electrical length of the radiator, for example, the area where the opening 62 is opened on the radiator covers the middle position of the side.
  • the opening 62 can be connected to the feeding circuit, and antisymmetric feeding is adopted. It should be understood that antisymmetric feeding can be understood as that the positive and negative poles of the feeding circuit are respectively connected to the two ends of the radiator.
  • the positive and negative poles of the feeding circuit output signals with the same amplitude and opposite phases, for example, the phase difference is 180° ⁇ 10°.
  • FIG36b shows the distribution of current, electric field, and magnetic current on the radiator 60 (which may also include the floor).
  • the current is distributed in the same direction around the slot 61 on the conductor (such as the floor, and/or the radiator 60) around the slot 61, the electric field is distributed in opposite directions on both sides of the opening 61 of the slot 61, and the magnetic current is distributed in opposite directions on both sides of the middle position of the slot 61.
  • the electric field at the opening 62 (for example, the feeding point) is in the same direction
  • the magnetic current at the opening 62 (for example, the feeding point) is in the same direction.
  • the feeding shown in FIG36a can be called slot CM feeding.
  • the antenna mode shown in FIG36b can be called a slot CM mode (also referred to as a CM mode for short, for example, for a slot antenna, the CM mode refers to a slot CM mode).
  • the electric field, current, and magnetic current distributions shown in FIG36b can be referred to as the electric field, current, and magnetic current of the slot CM mode.
  • the magnetic field is weaker in the middle of the radiator 60 and stronger at both ends of the radiator 60.
  • the electric field is stronger in the middle of the radiator 60 (the largest point of the electric field is located near the middle of the radiator 60) and weaker at both ends of the radiator 60, as shown in FIG36b.
  • the current on the radiator is distributed in the same direction on both sides of the opening, and the current amplitude is large at the two ends and small near the opening on the radiator, then the antenna mode corresponds to the slot common mode.
  • FIG36c is a current curve of the accessory radiator 110 in FIG30 and FIG31.
  • the distance between the curve and the accessory radiator 110 is positively correlated with the current amplitude.
  • FIG36c shows that the first end 1111 and the second end 1121 of the accessory radiator 110 are grounded and the middle is open.
  • the current on the accessory radiator 110 is distributed in the same direction on both sides of the opening.
  • the current amplitude on the radiator is large at the two ends and small near the opening.
  • the antenna mode of the accessory radiator 110 corresponds to the slot common mode.
  • the antenna mode of the corresponding antenna radiator 200 also corresponds to the slot common mode.
  • the radiator of the antenna has a hollow slot 72 or a gap, or it can be regarded as that the radiator 70 of the antenna and the floor (such as the ground layer of the PCB) enclose the slot or slot 72.
  • the slot 72 can be formed by cutting a slot on the floor.
  • the slot 72 can be enclosed by coupling the two ends of the radiator 70 with the floor. The middle position 71 of the slot 72 is connected to the feeding circuit, and symmetrical feeding is adopted.
  • symmetrical feeding can be understood as one end of the feeding circuit is connected to the radiator, and the other end is coupled to the floor to achieve grounding, wherein the connection point between the feeding circuit and the radiator (feeding point) is located at the center of the radiator, and the center of the radiator can be, for example, the midpoint of the geometric structure, or the midpoint of the electrical length (or an area within a certain range near the above midpoint).
  • the middle position of one side of the slot 72 is connected to the positive pole of the feeding circuit, and the middle position of the other side of the slot 72 is connected to the negative pole of the feeding circuit.
  • the middle position of the side of the slot 72 may be, for example, the middle position of the radiator 70 and/or the middle position of the floor, such as the geometric midpoint of the radiator 70, or the midpoint of the electrical length of the radiator, such as the connection between the feed circuit and the radiator covering the middle position of the slot 72.
  • the middle position of the side is 71.
  • FIG37b shows the distribution of current, electric field, and magnetic current on the radiator 70 (which may also include the floor).
  • the current is distributed around the slot 72, and is distributed in opposite directions on both sides of the middle position of the slot 72, the electric field is distributed in the same direction on both sides of the middle position 71, and the magnetic current is distributed in the same direction on both sides of the middle position 71.
  • the magnetic current at the feeding circuit is distributed in opposite directions (not shown). Based on the reverse distribution of the magnetic current at the feeding circuit, the feeding shown in FIG37a can be called slot DM feeding.
  • the antenna mode shown in FIG37b can be called a slot DM mode (also referred to as a DM mode for short, for example, for a slot antenna, the DM mode refers to a slot DM mode).
  • the distribution of the electric field, current, and magnetic current shown in FIG37b can be called the electric field, current, and magnetic current of the slot DM mode.
  • the current is weaker in the middle of the radiator 70 and stronger at both ends of the radiator 70.
  • the electric field is stronger in the middle of the radiator 70 (the largest point of the electric field is near the middle of the radiator 60) and weaker at both ends of the radiator 70, as shown in FIG37b.
  • the antenna mode corresponds to the slot differential mode.
  • FIG37c is a current curve of the accessory radiator 110 in FIG32 and FIG33.
  • the distance between the curve and the accessory radiator 110 is positively correlated with the current amplitude.
  • FIG37c shows that the first end 1111 and the second end 1121 of the accessory radiator 110 are grounded, and the current thereon is reversely distributed on the radiator.
  • the current amplitude on the radiator is large at both ends and small in the middle. Therefore, the antenna mode of the accessory radiator 110 corresponds to the slot differential mode. Similarly, the antenna mode of the corresponding antenna radiator 200 also corresponds to the slot differential mode.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Support Of Aerials (AREA)

Abstract

L'invention concerne un accessoire pour un dispositif électronique, un boîtier, un dispositif de communication et un système de communication, visant à résoudre le problème de mauvaise qualité de communication provoquée par un faible gain et un petit angle de faisceau d'un élément rayonnant d'antenne. Dans l'accessoire, un élément rayonnant d'accessoire est espacé d'un élément rayonnant d'antenne du dispositif électronique et couple un signal provenant de l'élément rayonnant d'antenne, c'est-à-dire que l'élément rayonnant d'antenne couple le signal à l'élément rayonnant d'accessoire ; l'élément rayonnant d'accessoire est en connexion de couplage avec un connecteur radiofréquence ; et le connecteur radiofréquence est connecté à une antenne externe. L'accessoire permet au dispositif électronique d'émettre un signal vers l'extérieur ou de recevoir un signal au moyen de l'antenne externe, et l'antenne externe a un gain élevé et un grand angle de faisceau, de telle sorte que le gain de communication et un angle de faisceau du dispositif électronique soient augmentés, ce qui permet d'améliorer la qualité de communication.
PCT/CN2024/110799 2023-08-17 2024-08-08 Accessoire pour dispositif électronique, boîtier, dispositif de communication et système de communication Pending WO2025036255A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202311052726.5 2023-08-17
CN202311052726.5A CN119495938A (zh) 2023-08-17 2023-08-17 用于电子设备的配件、外壳、通信设备及通信系统

Publications (1)

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WO2025036255A1 true WO2025036255A1 (fr) 2025-02-20

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PCT/CN2024/110799 Pending WO2025036255A1 (fr) 2023-08-17 2024-08-08 Accessoire pour dispositif électronique, boîtier, dispositif de communication et système de communication

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CN (1) CN119495938A (fr)
WO (1) WO2025036255A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1759504A (zh) * 2003-03-25 2006-04-12 奥蒂通电缆有限公司沙因费尔德分公司 用于移动无线电终端的天线耦合器和固定器
JP2008141627A (ja) * 2006-12-05 2008-06-19 Sony Ericsson Mobilecommunications Japan Inc 外付けアンテナ装置
CN101605159A (zh) * 2009-07-15 2009-12-16 中兴通讯股份有限公司 一种手机车载免提装置
CN113991282A (zh) * 2021-10-22 2022-01-28 Oppo广东移动通信有限公司 天线组件以及电子设备

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1759504A (zh) * 2003-03-25 2006-04-12 奥蒂通电缆有限公司沙因费尔德分公司 用于移动无线电终端的天线耦合器和固定器
JP2008141627A (ja) * 2006-12-05 2008-06-19 Sony Ericsson Mobilecommunications Japan Inc 外付けアンテナ装置
CN101605159A (zh) * 2009-07-15 2009-12-16 中兴通讯股份有限公司 一种手机车载免提装置
CN113991282A (zh) * 2021-10-22 2022-01-28 Oppo广东移动通信有限公司 天线组件以及电子设备

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