CN108336509A - Antenna module, electronic equipment and method of controlling antenna - Google Patents

Abstract

An embodiment of the present application provides an antenna assembly, an electronic device, and an antenna control method, wherein the antenna assembly includes a first antenna structure and a second antenna structure, wherein the first antenna structure and/or the second antenna structure are provided with a matching circuit, The matching circuit includes a variable capacitor; the capacitance value of the variable capacitor is switched according to the current operating resonance frequency of the first antenna structure and/or the second antenna structure, so that the first antenna structure and the The resonant frequencies differ between the second antenna structures. In the embodiments of the present application, variable capacitors are used to adjust the resonant frequency of the antenna, so that the resonant frequencies of multiple antennas are different, thereby reducing interference between multiple antennas, and further improving radiation quality of the antennas.

Description

Antenna assembly, electronic device and antenna control method

technical field

The present application relates to the technical field of electronic equipment, and in particular to an antenna assembly, electronic equipment and an antenna control method.

Background technique

With the development of network technology and the improvement of the intelligence of electronic equipment, users can realize more and more functions through electronic equipment, such as calling, chatting, playing games and so on.

Wherein, the user implements signal transmission through the antenna of the electronic device during the process of talking or chatting with the electronic device. When the antenna uses multiple antennas to transmit signals, the multiple antennas are likely to cause mutual interference.

Contents of the invention

Embodiments of the present application provide an antenna assembly, an electronic device, and an antenna control method, which can reduce interference among multiple antennas of an electronic device.

An embodiment of the present application provides an antenna assembly, including a first antenna structure and a second antenna structure, wherein:

The first antenna structure and/or the second antenna structure is provided with a matching circuit, the matching circuit includes a variable capacitance;

The capacitance value of the variable capacitor is switched according to the current operating resonant frequency of the first antenna structure and/or the second antenna structure, so that the resonant frequency between the first antenna structure and the second antenna structure different.

The embodiment of the present application also provides an electronic device, the electronic device includes an antenna assembly and a processor, wherein:

The antenna assembly includes a first antenna structure and a second antenna structure, the first antenna structure and/or the second antenna structure are provided with a matching circuit, and the matching circuit includes a variable capacitor;

The processor controls the switching of the capacitance value of the variable capacitor according to the current operating resonance frequency of the first antenna structure and/or the second antenna structure, so that the first antenna structure and the second antenna structure The operating resonant frequency differs between structures.

An embodiment of the present application also provides an antenna control method applied to an electronic device, where the electronic device includes an antenna component and a processor, wherein:

The antenna assembly includes a first antenna structure and a second antenna structure, the first antenna structure and/or the second antenna structure are provided with a matching circuit, and the matching circuit includes a variable capacitance;

The method is executed on the processor, including:

When the first antenna structure and the second antenna structure are both in operation, determine the current working resonance frequency of the first antenna structure and the second antenna structure;

According to the working resonant frequency, the variable capacitor is switched to a preset capacitance value corresponding to the working resonant frequency, so that the resonant frequency between the first antenna structure and the second antenna structure is different.

The antenna assembly provided in the embodiment of the present application includes a first antenna structure and a second antenna structure, wherein the first antenna structure and/or the second antenna structure is provided with a matching circuit, and the matching circuit includes a variable capacitance; The capacitance value of the variable capacitor is switched according to the current working resonance frequency of the first antenna structure and/or the second antenna structure, so that the resonance frequencies of the first antenna structure and the second antenna structure are different. In the embodiments of the present application, variable capacitors are used to adjust the resonant frequency of the antenna, so that the resonant frequencies of multiple antennas are different, thereby reducing interference between multiple antennas, and further improving radiation quality of the antennas.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings that need to be used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an electronic device provided by an embodiment of the present application.

FIG. 2 is a schematic diagram of a first structure of an electronic device provided by an embodiment of the present application.

FIG. 3 is a schematic diagram of a second structure of an electronic device provided by an embodiment of the present application.

FIG. 4 is a schematic diagram of a third structure of an electronic device provided by an embodiment of the present application.

FIG. 5 is a schematic diagram of a fourth structure of an electronic device provided by an embodiment of the present application.

FIG. 6 is a schematic structural diagram of an antenna assembly provided by an embodiment of the present application.

FIG. 7 is another schematic structural diagram of the antenna assembly provided by the embodiment of the present application.

FIG. 8 is another schematic structural diagram of the antenna assembly provided by the embodiment of the present application.

FIG. 9 is another schematic structural diagram of the antenna assembly provided by the embodiment of the present application.

FIG. 10 is a schematic diagram of a fifth structure of an electronic device provided by an embodiment of the present application.

FIG. 11 is a schematic flowchart of an antenna control method provided in an embodiment of the present application.

FIG. 12 is a schematic diagram of a sixth structure of an electronic device provided by an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Apparently, the described embodiments are only some of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of this application.

In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation indicated by rear, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc. The positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the application and simplifying the description, and does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, Therefore, it should not be construed as limiting the application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of said features. In the description of the present application, "plurality" means two or more, unless otherwise specifically defined.

In the description of this application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be mechanically connected, or electrically connected, or can communicate with each other; it can be directly connected, or indirectly connected through an intermediary, and it can be the internal communication of two components or the interaction of two components relation. Those of ordinary skill in the art can understand the specific meanings of the above terms in this application according to specific situations.

In this application, unless otherwise expressly specified and limited, a first feature being "on" or "under" a second feature may include direct contact between the first and second features, and may also include the first and second features Not in direct contact but through another characteristic contact between them. Moreover, "above", "above" and "above" the first feature on the second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. "Below", "beneath" and "under" the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.

The following disclosure provides many different implementations or examples for implementing different structures of the present application. To simplify the disclosure of the present application, components and arrangements of specific examples are described below. Of course, they are examples only and are not intended to limit the application. Furthermore, the present application may repeat reference numerals and/or reference letters in various instances, such repetition is for simplicity and clarity and does not in itself indicate a relationship between the various embodiments and/or arrangements discussed. In addition, various specific process and material examples are provided herein, but one of ordinary skill in the art may recognize the use of other processes and/or the use of other materials.

Embodiments of the present application provide an antenna component, an electronic device, and an antenna control method. The details will be described respectively below. The antenna assembly can be set in the electronic device, and the electronic device can be a smart phone, a tablet computer and other devices.

Please refer to FIG. 1 and FIG. 2. FIG. 1 is a schematic structural diagram of an electronic device provided by an embodiment of the present application, and FIG. 2 is a schematic structural diagram of another electronic device provided by an embodiment of the present application. The electronic device 10 may include a cover 11 , a display screen 12 , a circuit board 13 , a battery 14 , a casing 15 , a camera and a fingerprint unlocking module. It should be noted that the electronic device 10 shown in FIG. 1 and FIG. 2 is not limited to the above content, it may also include other devices, or may not include a camera, or may not include a fingerprint unlocking module.

Wherein, the cover plate 11 is installed on the display screen 12 to cover the display screen 12 . The cover plate 1 can be a transparent glass cover plate, so that the light-transmitting cover plate 11 of the display screen can display. In some embodiments, the cover plate 11 may be a glass cover plate made of materials such as sapphire.

Wherein, the housing 15 may include a middle frame 151 and a rear cover 152, the middle frame 151 and the rear cover 152 are combined to form the housing 15, and the middle frame 151 and the rear cover 152 may form a storage space for accommodating the printed circuit board 13. Display screen 12, battery 14 and other devices. Further, the cover plate 11 can be fixed on the housing 15, and the cover plate 11 and the housing 15 form a closed space for accommodating the printed circuit board 13, the display screen 12, the battery 14 and other components. In some embodiments, the cover plate 11 is set on the middle frame 151, and the rear cover 152 is set on the middle frame 151. The cover plate 11 and the rear cover 152 are located on the opposite sides of the middle frame 151. relative settings.

In some embodiments, the shell 15 can be a metal shell, such as magnesium alloy, stainless steel and other metals. It should be noted that the material of the housing 15 in the embodiment of the present application is not limited thereto, and other methods may also be used, for example, the housing 15 may be a plastic housing. Another example: the shell 15 is a ceramic shell. Another example: the housing 15 can include a plastic part and a metal part, and the housing 15 can be a shell structure in which metal and plastic cooperate with each other. Specifically, the metal part can be formed first, such as forming a magnesium alloy substrate by injection molding. Plastic is then injected on the alloy substrate to form a plastic substrate, which constitutes a complete shell structure.

It should be noted that the structure of the housing in the embodiment of the present application is not limited thereto. For example, the rear cover and the middle frame are integrally formed to form a completed housing 15 structure. The housing directly has a storage space for storing printed Circuit board 13, display screen 12, battery 14 and other devices.

Wherein, the printed circuit board 13 is installed in the housing 15, the printed circuit board 13 can be the main board of the electronic device 10, and the printed circuit board 13 can be integrated with a motor, a microphone, a speaker, an earphone jack, a universal serial One, two or more of functional components such as bus interface, camera, distance sensor, ambient light sensor, receiver and processor.

In some embodiments, the printed circuit board 13 can be fixed in the housing 15 . Specifically, the printed circuit board 13 can be screwed to the middle frame 151 by screws, or can be snapped to the middle frame 151 by buckling. It should be noted that, the method of fixing the printed circuit board 13 to the middle frame 151 in the embodiment of the present application is not limited to this, and other methods can also be used, such as fixing together by buckles and screws.

Wherein, the battery 14 is installed in the housing 15 , and the battery 14 is electrically connected to the printed circuit board 13 to provide power to the electronic device 10 . The case 15 may serve as a battery cover for the battery 14 . The casing 15 covers the battery 14 to protect the battery 14 , specifically, the back cover covers the battery 14 to protect the battery 14 , so as to reduce the damage to the battery 14 due to the collision and drop of the electronic device 10 .

Wherein, the display screen 12 is installed in the housing 15 , and at the same time, the display screen 12 is electrically connected to the printed circuit board 13 to form the display surface of the electronic device 10 . The display screen 12 may include a display area and a non-display area. The display area may be used to display the screen of the electronic device 10 or provide touch manipulation by the user. The top area of the non-display area is provided with openings for sound and light transmission, and the bottom of the non-display area can be provided with functional components such as fingerprint modules and touch buttons. Wherein the cover plate 11 is installed on the display screen 12 to cover the display screen 12, and may form the same display area and non-display area as the display screen 12, or may form different display areas and non-display areas.

It should be noted that, the structure of the display screen 12 is not limited thereto. For example, the display screen 12 may be a special-shaped screen. For details, please refer to FIG. 3 , which is another schematic structural diagram of the electronic device provided by the embodiment of the present application. The difference between the electronic device in FIG. 3 and the electronic device in FIG. 1 is that the electronic device 20 includes a display screen 22 , a cover plate 21 , a printed circuit board 23 , a battery 24 and a casing 25 . Wherein the display screen 22 is directly formed with a light-permeable area 28 thereon. Specifically, for example: the display screen 22 is provided with a through hole penetrating through the display screen 22 in the thickness direction, the permeable area 28 may include the through hole, and functional components such as a front camera, an earpiece, and a sensor may be arranged at the position of the through hole. For another example: the display screen 22 is provided with a non-display area, and the permeable area 28 may include the non-display area. Wherein, the cover plate 21 is suitable for the structural setting of the display screen 22 . It should be noted that for the case 25, refer to the above case 15, for the printed circuit board 23, refer to the above printed circuit board 13, and for the battery 24, refer to the above battery 14, which will not be repeated here.

Please refer to FIG. 4. FIG. 4 is a schematic structural diagram of another electronic device provided by the embodiment of the present application. The difference between the electronic device in FIG. 4 and the electronic device in FIG. 1 is that the electronic device 30 in FIG. 4 includes a display screen 32 , cover plate 31 , printed circuit board 33 , battery 34 and housing 35 . Wherein, the display screen 32 is provided with a notch 121 on its periphery, and the notch 121 can place functional components such as a front camera, an earpiece, and a sensor. Wherein, the cover plate 31 is suitable for the structural setting of the display screen 11 , and the cover plate 31 can be provided with a gap of equal size in the notch 121 , and the cover plate 31 can also cover the position of the notch 121 . It should be noted that, for the housing 3, refer to the above housing 15, for the printed circuit board 33, refer to the above printed circuit board 13, and for the battery 34, refer to the above battery 14, which will not be repeated here.

It should also be noted that, in some embodiments, the display screen 12 may not include a non-display area, but may be configured as a full-screen structure, and functional components such as a distance sensor and an ambient light sensor may be disposed under the display screen or at other positions. . Specifically, please refer to FIG. 5 . FIG. 5 is another schematic structural diagram of an electronic device provided by an embodiment of the present application. The electronic device 40 includes a display screen 42 , a cover plate 41 , a printed circuit board 43 , a battery 44 and a casing 45 . Wherein, the display screen 42 covers the casing 45 without a non-display area. Wherein, the cover plate 41 is suitable for the size setting of the display screen 42 . It should be noted that for the case 45, refer to the above case 15, for the printed circuit board 43, refer to the above printed circuit board 13, and for the battery 44, refer to the above battery 14, which will not be repeated here.

In some embodiments, the display screen 12 may be a liquid crystal display (Liquid Crystal Display, LCD) or an organic light-emitting diode display (Organic Light-Emitting Diode, OLED) or other type of display. In some embodiments, when the display screen 12 is a liquid crystal display screen, the electronic device 10 may further include a backlight module, which is not shown in the figure, and the backlight module may refer to backlight modules in the prior art.

In some embodiments, the electronic device 10 may also include an antenna structure for sending and receiving signals. The antenna structure can be installed on the casing 15 , such as the middle frame 151 . The antenna structure can form a fixed connection structure with the middle frame 151, which is defined as an antenna component. The antenna assembly is taken as an example to describe in detail below.

Please refer to FIG. 6 . FIG. 6 is a schematic structural diagram of an antenna assembly provided by an embodiment of the present application. The antenna assembly may include an antenna structure and a carrier.

Wherein, the carrier 500 can be a shell structure, which can be a plate-shaped structure, and can also have a receiving cavity, and the carrier 500 can be a metal material, such as a magnesium alloy material. The carrier 500 can also be co-injection molded of metal and plastic. It should be noted that the carrier 500 can refer to the above middle frame, or the carrier 500 can refer to the above rear cover 502 , or the carrier 500 can refer to the above structure of the integral formation of the middle frame and the rear cover 502 , which will not be repeated here.

In some embodiments, the carrier 500 may include a metal middle frame and a rear cover 502 of the electronic device. Specifically, the metal middle frame can have openings on the sides to divide the middle frame into several parts. Wherein, the metal middle frame may include a first side frame 501 and a second side frame 503 . The back cover 502 is connected to the reference ground of the electronic device to achieve grounding.

Wherein, the antenna structure can be installed on the carrier 500, and the antenna structure can send and receive signals. In some embodiments, there are at least two antenna structures, and two antenna structures are taken as an example for illustration here. Specifically, the antenna structure may include a first antenna structure 51 and a second antenna structure 52 .

Wherein, the first antenna structure 51 may be disposed on one side of the carrier 500 , and the second antenna structure 52 may be disposed on the other side of the carrier 500 relative to the first antenna structure 51 . In some embodiments, the first antenna structure 51 can be used as the main set antenna, and the first antenna structure 51 can transmit and receive signals, for example, the first antenna structure 51 can transmit and receive low frequency band (700-960MHz), medium frequency band (1710-2170MHz) And at least one signal in the high frequency band (2300-2690MHz) signal. It should be noted that the first antenna structure 51 can also be used to send and receive other signals. In some embodiments, the first antenna structure 51 can also serve as a diversity antenna for receiving signals.

Similarly, in some embodiments, the second antenna structure 52 can also be used as the main antenna, and the second antenna structure 52 can send and receive signals, for example, the second antenna structure 52 can send and receive low frequency band (700-960MHz), middle frequency band ( 1710-2170MHz) and at least one signal in the high frequency band (2300-2690MHz) signal. It should be noted that the second antenna structure 52 can also be used to send and receive other signals. In some embodiments, the second antenna structure 52 may also function as a diversity antenna for receiving signals.

Specifically, the first antenna structure 51 is arranged at the first side frame 501 , and the first side frame 501 and the back cover 502 of the electronic device form the first antenna structure 51 . The second antenna structure 52 is disposed at the second side frame 503 , and the second side frame 503 and the back cover 502 of the electronic device form the second antenna structure 52 .

In some embodiments, the first antenna structure 51 includes a feeding module and a grounding module. Specifically, the first antenna structure 51 includes a first feeding module and a first grounding module. Both the first feeding module and the first grounding module are connected to the first side frame 501, so as to feed the radio frequency signal into the first side frame 501 and form a signal loop at the first side frame 501, so that the first side frame 501 Signal radiation is performed as a radiator in the first antenna structure 51 .

Further, the feed module includes a first feed source 521, a first matching circuit 551, and a first contact 541 connected in series in sequence. The first feed source 521 passes the radio frequency signal through the first matching circuit 551 for resonance matching processing, and passes the The first contact 541 feeds into the first side frame 501 . The first grounding module includes a first grounding point and a second grounding point, wherein the first grounding point and the second grounding point make the first side frame 501 connect to the reference ground of the electronic device through the second contact 542 and the third contact 543 respectively. connected, and a first switch 531 and a second switch 532 are respectively provided between the first ground point, the second ground point and the reference ground, so as to switch the radiation length of the antenna structure through the control of the first switch 531 and the second switch 532, Further, the working resonant frequency of the first antenna structure 51 is controlled. It should be noted that other matching circuits for resonance matching may also be provided at the first grounding point and the second grounding point, and no relevant illustrations are shown in the accompanying drawings of this application.

Still further, the first antenna structure 51 also includes a third ground point 511 and a fourth ground point 512, the third ground point 511 and the fourth ground point 512 are connected to the back cover 502 of the electronic device, so that the first antenna The structure 51 is grounded, and the requirement of multiple working resonant frequency bands of the first antenna structure 51 is realized by grounding at different distances from the first feeding module.

In some embodiments, like the first antenna structure 51 , the second antenna structure 52 includes a feed module and a ground module. Specifically, the second antenna structure 52 includes a second feeding module and a second grounding module. Both the second power feeding module and the second grounding module are connected to the second side frame 503, so as to feed the radio frequency signal into the second side frame 503 and form a signal loop at the second side frame 503, so that the second side frame 503 Signal radiation takes place as a radiator in the second antenna structure 52 .

Further, the feed module includes a second feed source 522 , a third switch 533 and a fourth contact 544 connected in series in sequence. Specifically, the second feed source 522 feeds the radio frequency signal to the second side frame 503 through the fourth contact 544, and the third switch 533 is used to turn on the second antenna structure 52 when it is necessary to use the second antenna structure 52 as a diversity antenna. The connection between the feeding source 522 and the second side frame 503 . The second grounding module includes a fifth grounding point and a sixth grounding point 513. The fifth grounding point allows the second side frame 503 to be connected to the reference ground of the electronic device through the fifth contact 545. The sixth grounding point 513 is connected to the The two side frames 503 and the rear cover 502 are used to ground the second side frame 503 .

In some embodiments, the second grounding module further includes a second matching circuit 552, and the second matching circuit 552 is provided with a variable capacitor. Specifically, the variable capacitor can be switched according to the current working resonance frequency of the second antenna structure 52 , so that the resonance frequency of the second antenna structure 52 is different from that of the first antenna structure 51 .

For example, when the current operating resonance frequency of the second antenna structure 52 belongs to the low-frequency resonance frequency, and the second antenna structure 52 and the first antenna structure 51 work together at the low-frequency resonance frequency, the capacitance value of the variable capacitor is switched to the first capacitance value to change the resonant frequency of the signal radiated by the second antenna structure 52 , so that the resonant frequency of the second antenna structure 52 is different from the resonant frequency of the first antenna structure 51 .

Specifically, the first capacitance value switched to by the variable capacitor can be larger than the default capacitance value when the second antenna structure 52 operates at other frequencies, so that the resonant frequency of the second antenna structure 52 is lower than the second feed source 522 The working resonant frequency that can be generated originally. Thus, the resonant frequency of the second antenna structure 52 can be made different from the resonant frequency of the first antenna structure 51 .

Alternatively, the first capacitance value switched to by the variable capacitor may be smaller than the default capacitance value when the second antenna structure 52 operates at other frequencies, so that the resonant frequency of the second antenna structure 52 is higher than that of the second feed source 522 originally. The operating resonant frequency that can be generated. As a result, the resonant frequency of the second antenna structure 52 can also be different from the resonant frequency of the first antenna structure 51 .

It can be understood that the variable capacitor needs to be adjusted to a capacitance value larger or smaller than the default value, and the value of the capacitance value needs to be changed, which can be determined according to the actual application situation, which is not limited in this application.

When the capacitance value in the second matching circuit 552 of the second antenna structure 52 is changed, in addition to changing the resonant frequency of the second antenna structure 52, it will also affect the phase of the signal radiated by the second antenna structure 52, so as to reduce the The envelope correlation coefficient (EnvelopeCorrelation Coefficient, ECC) between the signal radiated by the second antenna structure 52 and the signal radiated by the first antenna structure 51, thereby reducing the signal interference between the second antenna structure 52 and the first antenna structure 51, Improve the signal radiation quality of the antenna.

In some embodiments, changing the value of the variable capacitor can realize the change of the capacitance value through a single adjustable capacitor, and the adjustable capacitor can be a step adjustment capacitor or a linear adjustment capacitor. For example, through the connection with the processor in the electronic device, the processor can control the adjustable capacitor to adjust the capacitance value, and then control the change of the resonant frequency of the second antenna structure 52 .

In some other embodiments, the variable capacitor may be a combined capacitor composed of one or more capacitors, and the capacitance value can be changed by controlling the connection or disconnection of different capacitors.

Please refer to FIG. 7 , which shows another structure of the antenna assembly described in this application. The antenna assembly also includes a first antenna structure 51 and a second antenna structure 52 . Wherein, in the second antenna structure 52 , the second side frame 503 is connected with a second grounding module.

Specifically, the second grounding module is provided with a second matching circuit 552, and the second matching circuit 552 includes a matching sub-circuit 552b and a variable capacitor connected in parallel, and the variable capacitor includes a first capacitor 552a and a switch 552c. Further, the switching switch 552c is connected in series with the first capacitor 552a to control the disconnection of the first capacitor 552a in the second matching circuit 552 according to the resonant frequency of the second antenna structure 52 .

When switching the capacitance value of the variable capacitor, the switch 552c can be controlled to control the connection or disconnection of the first capacitor 552a, so as to realize the change of the capacitance value of the variable capacitor in the second matching circuit 552 . This embodiment has a simple structure, and can realize the switching of the capacitance value in the variable capacitor at a relatively low cost, thereby reducing the manufacturing cost of the product and improving the enterprise benefit.

Specifically, when the second antenna structure 52 is at the first resonant frequency, the first capacitor 552a is electrically connected to the second matching circuit 552, and the first capacitor 552a is connected in parallel to the matching sub-circuit 552b. Alternatively, when the second antenna structure 52 is at the second resonant frequency, the first capacitor 552 a and the second matching circuit 552 are in a state of being electrically disconnected. It should be noted that, in this embodiment, when the antennas are all working at the first resonant frequency, it will easily cause mutual interference between the first antenna structure 51 and the second antenna structure 52, and the antennas are all working at the first resonance frequency. At the second resonant frequency, the first antenna structure 51 and the second antenna structure 52 are not likely to cause mutual interference relative to the operation at the first resonant frequency.

Therefore, when the first antenna structure 51 and the second antenna structure 52 are at the first resonant frequency, the capacitance value set in the second matching circuit 552 of the second antenna structure 52 changes due to the access of the first capacitor 552a is large, so that the resonant frequency of the second antenna structure 52 is lower than the preset value of the first resonant frequency, and affects the phase of the resonant frequency, so that the actual resonant frequency of the second antenna structure 52 is lower than the working frequency of the first antenna structure 51 first resonant frequency.

And when the second antenna structure 52 is at the second resonant frequency, since the first antenna structure 51 and the second antenna structure 52 are not likely to cause mutual interference, there is no need to make the resonant frequencies between the two different, and it can be disconnected at this time. Turn on the access of the first capacitor 552a.

Alternatively, when the second antenna structure 52 is at the first resonant frequency, the first capacitor 552 a and the second matching circuit 552 are disconnected. Alternatively, when the second antenna structure 52 is at the second resonant frequency, the first capacitor 552 a is electrically connected to the second matching circuit 552 .

It can be understood that there are many ways to control the first capacitor 552a, as long as the default value of the capacitor in normal operation can be changed so that the first antenna and the second antenna work at different frequencies. Not limited.

Through the distinction of different resonant frequencies, the capacitance of the variable capacitor can be switched in a targeted manner according to whether the first antenna structure 51 and the second antenna structure 52 are likely to cause mutual interference, so that the premise of reducing antenna interference Under this condition, the signal radiation efficiency of other resonant frequencies is guaranteed.

In some embodiments, the above-mentioned first resonant frequency may be a low frequency resonant frequency located in the low frequency band (700-960MHz), and the second resonant frequency may be an intermediate frequency resonant frequency located in the middle frequency band (1710-2170MHz), or High frequency resonant frequency in the high frequency band (2300-2690MHz).

The low-frequency resonance frequency is likely to cause interference between multiple antennas. By changing the capacitance of the variable capacitor at the low-frequency resonance frequency, the interference can be effectively reduced and the transmission efficiency of the antenna can be improved. At the intermediate frequency resonant frequency or high frequency resonant frequency with less mutual interference, keeping the resonant frequencies of the first antenna structure 51 and the second antenna structure 52 consistent can ensure the signal radiation efficiency of the antenna structure.

Therefore, realizing the adjustment of the variable capacitor by frequency bands can better optimize the radiation quality of the antenna according to different frequency band environments, and improve the intelligence of the antenna control.

It can be understood that with regard to the specific positions, shapes, and parameters of the first antenna structure 51, the second antenna structure 52, and other related structures, such as the position, thickness, and length of the antenna structures, or the mentioned or unmentioned circuits The specific circuit structure in the module can be set, changed or replaced according to the actual situation and combined with the existing technology, which is not limited in the embodiment of the present application.

Please refer to FIG. 8 , which shows another structure of the antenna assembly provided by the embodiment of the present application.

Compared with FIG. 7 , the antenna assembly is different in that a third matching circuit 553 is provided on the first ground point of the first antenna structure 51 , and the variable capacitor is arranged on the third matching circuit 553 . Specifically, the variable capacitor is connected in parallel with the matching sub-circuit 553b in the third matching circuit 553, and the variable capacitor includes a second capacitor 553a and a switch 553c. On the fifth ground point of the second antenna structure 52 , the second antenna structure 52 is connected to the reference ground of the electronic device through the fifth contact 545 .

Other structures of the antenna assembly are the same or similar to those shown in FIG. 7 , and the control method of the variable capacitor is the same or similar to the control method disclosed in the embodiment of FIG. 7 . Therefore, in order to avoid redundant descriptions, the descriptions about other structures in FIG. 8 can directly refer to the descriptions in FIG. 7 .

In the embodiment of the present application, by changing the resonant frequency of the first antenna structure 51 so that the resonant frequencies between the first antenna structure 51 and the second antenna structure 52 are different, it is also possible to reduce the interference between multiple antennas, thereby improving the radiation of the antennas. Quality technical effects.

Please refer to FIG. 9 , which shows another structure of the antenna assembly provided by the embodiment of the present application.

Compared with FIG. 7, the antenna assembly differs in that a third matching circuit 553 is provided on the first ground point of the first antenna structure 51, and a third matching circuit 553 is also provided on the fifth ground point of the second antenna structure 52. Two matching circuits 552 . The variable capacitor is disposed on the second matching circuit 552 and the third matching circuit 553 .

Other structures of the antenna assembly are the same or similar to those shown in FIGS. 7-8 , and the control method of the variable capacitor is the same or similar to the control method disclosed in the embodiment of FIGS. 7-8 . Therefore, in order to avoid redundant descriptions, descriptions about other structures in FIG. 9 can directly refer to descriptions in FIGS. 7-8 .

In the embodiment of the present application, by changing the resonant frequencies of the first antenna structure 51 and the second antenna structure 52 simultaneously or separately, so that the resonant frequencies between the first antenna structure 51 and the second antenna structure 52 are different, the reduction of multiple antennas can also be achieved. Interference between the antennas, thereby improving the technical effect of the radiation quality of the antenna.

Please refer to FIG. 10 , which shows a fifth structure of the electronic device provided by the embodiment of the present application. The electronic device includes an antenna assembly and a processor 560 .

Wherein, for a specific implementation manner of the antenna assembly, reference may be made to the antenna assembly described in FIGS. 7-9 .

The processor 560 is connected to the second matching circuit 552 in the antenna assembly, the second matching circuit 552 includes a variable capacitor, and the processor 560 controls switching of the capacitance of the variable capacitor.

Specifically, in some embodiments, the variable capacitor includes a first capacitor 552a and a switch 552c connected in series. Further, the processor 560 controls the switching switch to control the disconnection of the first capacitor in the second matching circuit 552 according to the resonant frequency of the second antenna structure 52 .

In some embodiments, the processor 560 is configured to control the switching switch 552c to be turned on when the second antenna structure 52 is at the first resonant frequency, so that the first capacitor 552a is electrically connected to the second matching circuit 552, and The first capacitor 552a is connected in parallel with the matching sub-circuit 552b.

In some other embodiments, the processor 560 is further configured to control the switching switch 552c to be turned off when the second antenna structure 52 is at the second resonance frequency, so that the first capacitor 552a is in a state of being electrically disconnected from the matching circuit.

In some embodiments, the first resonant frequency is a low frequency resonant frequency, and the second resonant frequency is an intermediate frequency resonant frequency or a high frequency resonant frequency.

In some embodiments, both the first antenna structure 51 and the second antenna structure 52 include a feed module and a ground module, and the matching circuit is provided on the ground module.

It can be understood that, in addition to the antenna structure in the electronic device shown in the figure, the antenna structure may also be the antenna structure shown in FIGS. 8-9 .

For the specific content of the antenna structure, reference may be made to the description in FIGS. 7-9 , which will not be repeated in this application.

The electronic device in the embodiment of the present application uses a variable capacitor to adjust the resonant frequency of the antenna, so that the resonant frequencies of multiple antennas are different, thereby reducing the interference between multiple antennas, and further improving the radiation quality of the antennas.

Please refer to FIG. 11 , which shows an antenna control method provided by an embodiment of the present application, and the antenna control method can be used in the electronic device as shown in FIGS. 1-5 and 10 .

The electronic device includes an antenna assembly and a processor, wherein the antenna assembly includes a first antenna structure and a second antenna structure, the first antenna structure and/or the second antenna structure are provided with a matching circuit, and the matching circuit includes a variable capacitance ;

The processor controls the switching of the capacitance value of the variable capacitor according to the working resonant frequency of the first antenna structure and/or the second antenna structure, so that the resonant frequencies of the first antenna structure and the second antenna structure are different.

When the method is applied to an electronic device, it can run on the operating system of the electronic device, including but not limited to Windows operating system, Mac OS operating system, Android operating system, IOS operating system, Linux operating system, Ubuntu operating system, The Windows Phone operating system and the like are not limited in this embodiment of the present application.

An antenna control method, comprising the steps of:

601. When both the first antenna structure and the second antenna structure are in the working state, determine the current working resonance frequency of the first antenna structure and the second antenna structure;

Wherein, the working resonant frequency may be the resonant frequency at which the first antenna structure and the second antenna structure are currently working. In the frequency band (2300-2690MHz).

In some embodiments, the current operating resonant frequency of the first antenna structure and the second antenna structure can be obtained from the current frequency setting parameters of the electronic device, or can be obtained through other methods, such as detecting the current resonance The frequency value can be set according to the prior art for specific implementation.

602. According to the working resonant frequency of the first antenna structure and the second antenna structure, switch the variable capacitor to a preset capacitance value corresponding to the working resonant frequency, so that the first antenna structure and the second antenna structure The resonant frequency is different.

Wherein, the preset capacitance value refers to the capacitance value set in advance for the first antenna structure or the second antenna structure to work normally at the working resonance frequency.

In some embodiments, if the matching circuit in the electronic device includes a matching subcircuit, and the matching subcircuit is connected in parallel with the variable capacitor, the variable capacitor includes a first capacitor and a switch, and when the switch is connected in series with the first capacitor . The step of switching the variable capacitor to a preset capacitance value corresponding to the working resonance frequency may include:

According to the resonant frequency of the first antenna structure and/or the second antenna structure, the connection of the first capacitor in the variable capacitor is controlled by controlling the connection of the switching switch, so as to change the capacitance value of the variable capacitor.

By controlling the opening and closing of the switch to change the capacitance value of the variable capacitor, the capacitance value of the variable capacitor can be switched according to whether it is easy to cause mutual interference between the first antenna structure and the second antenna structure, so that On the premise of reducing antenna interference, the signal radiation efficiency of other resonant frequencies is guaranteed.

Specifically, when the first antenna structure and/or the second antenna structure are at the first resonance frequency, the first capacitor is electrically connected to the matching circuit, and the first capacitor is connected in parallel with the matching sub-circuit;

When the first antenna structure and/or the second antenna structure are at the second resonant frequency, the first capacitor and the matching circuit are in a state of being electrically disconnected.

Wherein, the first resonant frequency is a low frequency resonant frequency, and the second resonant frequency is an intermediate frequency resonant frequency or a high frequency resonant frequency.

The low-frequency resonance frequency is likely to cause interference between multiple antennas. By changing the capacitance of the variable capacitor at the low-frequency resonance frequency, the interference can be effectively reduced and the transmission efficiency of the antenna can be improved. At the intermediate frequency resonance frequency or high frequency resonance frequency with less mutual interference, keeping the resonance frequencies of the first antenna structure and the second antenna structure consistent can ensure the signal radiation efficiency of the antenna structure.

Therefore, realizing the adjustment of the variable capacitor by frequency bands can better optimize the radiation quality of the antenna according to different frequency band environments, and improve the intelligence of the antenna control.

It can be seen that, in the antenna control method in the embodiment of the present application, the variable capacitance can be used to adjust the resonant frequency of the antenna, so that the resonant frequencies among the multiple antennas are different, thereby reducing the interference between the multiple antennas, and further improving the radiation quality of the antennas.

Please refer to FIG. 12 , which shows a sixth structure of the electronic device provided by the embodiment of the present application.

The electronic device may be a device such as a smart phone or a tablet computer, or the electronic device described in FIGS. 1-5 and 10 . As shown in FIG. 12 , an electronic device 700 includes a processor 701 and a memory 702 . Wherein, the processor 701 is electrically connected with the memory 702 .

The processor 701 is the control center of the electronic device 700. It uses various interfaces and lines to connect various parts of the entire electronic device. Various functions and processing data of the equipment, so as to monitor the electronic equipment as a whole.

In this embodiment, the processor 701 in the electronic device 700 will follow the steps below to load the instructions corresponding to the process of one or more computer programs into the memory 702, and the instructions stored in the memory 702 will be executed by the processor 701. computer programs in the , so as to achieve various functions, such as:

When both the first antenna structure and the second antenna structure are in the working state, determine the current working resonant frequency of the first antenna structure and the second antenna structure;

According to the working resonant frequency, the variable capacitor is switched to a preset capacitance value corresponding to the working resonant frequency, so that the resonant frequency between the first antenna structure and the second antenna structure is different.

In some embodiments, the processor 701 also performs the following steps:

According to the resonant frequency of the first antenna structure and/or the second antenna structure, by controlling the connection of the switch to control the connection of the first capacitor in the variable capacitor, so as to change the Capacitance value of the variable capacitor.

In some embodiments, the processor 701 also performs the following steps:

When the first antenna structure and/or the second antenna structure are at the first resonant frequency, the first capacitor is electrically connected to the matching circuit, and the first capacitor is connected to the matching circuit circuit in parallel;

When the first antenna structure and/or the second antenna structure are at the second resonant frequency, the first capacitor is electrically disconnected from the matching circuit.

Memory 702 may be used to store computer programs and data. The computer program stored in the memory 702 includes instructions executable by the processor. Computer programs can be composed of various functional modules. The processor 701 executes various functional applications and data processing by invoking the computer programs stored in the memory 702, for example:

When both the first antenna structure and the second antenna structure are in the working state, determine the current working resonant frequency of the first antenna structure and the second antenna structure;

According to the working resonant frequency, the variable capacitor is switched to a preset capacitance value corresponding to the working resonant frequency, so that the resonant frequency between the first antenna structure and the second antenna structure is different.

It can be seen that, in the embodiment of the present application, the resonant frequency of the antenna is adjusted by using the variable capacitor, so that the resonant frequency among the multiple antennas is different, thereby reducing the interference between the multiple antennas, and further improving the radiation quality of the antennas.

It should be noted that those skilled in the art can understand that all or part of the steps in the various methods of the above-mentioned embodiments can be completed by instructing related hardware through a computer program, and the computer program can be stored in a computer-readable storage medium In this example, the storage medium may include but not limited to: a read only memory (ROM, Read Only Memory), a random access memory (RAM, Random Access Memory), a magnetic disk or an optical disk, and the like.

The antenna assembly, electronic equipment, and antenna control method provided by the embodiments of the present application are described above in detail. In this paper, specific examples are used to illustrate the principles and implementation methods of the present application. The descriptions of the above embodiments are only used to help understand the present application. Application. At the same time, for those skilled in the art, based on the idea of this application, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be construed as limiting the application.

Claims (16)

1. An antenna assembly, comprising a first antenna structure and a second antenna structure, wherein: The first antenna structure and/or the second antenna structure is provided with a matching circuit, the matching circuit includes a variable capacitor; The capacitance value of the variable capacitor is switched according to the current operating resonant frequency of the first antenna structure and/or the second antenna structure, so that the resonant frequency between the first antenna structure and the second antenna structure different. 2. The antenna assembly according to claim 1, wherein the matching circuit includes a matching subcircuit, the matching subcircuit is connected in parallel with the variable capacitor, and the variable capacitor includes a first capacitor and a switch ; The switching switch is connected in series with the first capacitor, so as to control the disconnection of the first capacitor in the matching circuit according to the resonant frequency of the first antenna structure and/or the second antenna structure. 3. The antenna assembly according to claim 2, wherein the switch is configured to enable the first capacitor to It is in a state of being electrically connected with the matching circuit, and the first capacitor is connected in parallel with the matching sub-circuit; the switching switch is also used for when the first antenna structure and/or the second antenna structure are in the second When the resonant frequency is reached, the first capacitor is electrically disconnected from the matching circuit. 4. The antenna assembly according to claim 3, wherein the first resonant frequency is a low frequency resonant frequency, and the second resonant frequency is an intermediate frequency resonant frequency or a high frequency resonant frequency. 5. The antenna assembly according to any one of claims 1-4, wherein the first antenna structure and the second antenna structure both include a feed module and a ground module, and the matching circuit is arranged on the ground on the module. 6. The antenna assembly according to any one of claims 1-4, wherein the first antenna structure is used as a signal radiation structure of a main antenna, and the second antenna structure is used as a diversity antenna A signal radiation structure, the matching circuit is arranged on the second antenna structure. 7. An electronic device, characterized in that the electronic device comprises an antenna assembly and a processor, wherein: The antenna assembly includes a first antenna structure and a second antenna structure, the first antenna structure and/or the second antenna structure are provided with a matching circuit, and the matching circuit includes a variable capacitor; The processor controls the switching of the capacitance value of the variable capacitor according to the current operating resonance frequency of the first antenna structure and/or the second antenna structure, so that the first antenna structure and the second antenna structure The operating resonant frequency differs between structures. 8. The electronic device according to claim 7, wherein the matching circuit includes a matching subcircuit, the matching subcircuit is connected in parallel with the variable capacitor, and the variable capacitor includes a first capacitor and a switch ; The switching switch is connected in series with the first capacitor, so as to control the disconnection of the first capacitor in the matching circuit according to the working resonance frequency of the first antenna structure and/or the second antenna structure. 9. The antenna assembly according to claim 8, wherein the processor is configured to control the switching switch to be turned on when the first antenna structure and/or the second antenna structure is at the first resonant frequency, Put the first capacitor in a state of being electrically connected to the matching circuit, and connect the first capacitor in parallel with the matching sub-circuit; the processor is also configured to when the first antenna structure and/or the second When the two antenna structures are at the second resonant frequency, the switching switch is controlled to be turned off, so that the first capacitor and the matching circuit are in a state of being electrically disconnected. 10. The antenna assembly according to claim 9, wherein the first resonant frequency is a low frequency resonant frequency, and the second resonant frequency is an intermediate frequency resonant frequency or a high frequency resonant frequency. 11. The antenna assembly according to any one of claims 7-10, wherein the first antenna structure and the second antenna structure both include a feed module and a ground module, and the matching circuit is arranged on the ground on the module. 12. The antenna assembly according to any one of claims 7-10, wherein the first antenna structure is used as a signal radiation structure of a main antenna, and the second antenna structure is used as a diversity antenna A signal radiation structure, the matching circuit is arranged on the second antenna structure. 13. An antenna control method applied to an electronic device, wherein the electronic device includes an antenna component and a processor, wherein: The antenna assembly includes a first antenna structure and a second antenna structure, the first antenna structure and/or the second antenna structure are provided with a matching circuit, and the matching circuit includes a variable capacitor; The method is executed on the processor, including: When both the first antenna structure and the second antenna structure are in the working state, determine the current working resonant frequency of the first antenna structure and the second antenna structure; According to the working resonant frequency, the variable capacitor is switched to a preset capacitance value corresponding to the working resonant frequency, so that the resonant frequency between the first antenna structure and the second antenna structure is different. 14. The antenna control method according to claim 13, wherein the matching circuit includes a matching subcircuit, and the matching subcircuit is connected in parallel with the variable capacitor, and the variable capacitor includes a first capacitor and a switch a switch, the switch is connected in series with the first capacitor; The switching of the variable capacitance to a preset capacitance value corresponding to the working resonance frequency includes: According to the resonant frequency of the first antenna structure and/or the second antenna structure, by controlling the connection of the switch to control the connection of the first capacitor in the variable capacitor, so as to change the Capacitance value of the variable capacitor. 15. The antenna control method according to claim 14, wherein the controlling the disconnection of the switching switch according to the resonant frequency of the first antenna structure and/or the second antenna structure comprises: When the first antenna structure and/or the second antenna structure are at the first resonant frequency, the first capacitor is electrically connected to the matching circuit, and the first capacitor is connected to the matching circuit circuit in parallel; When the first antenna structure and/or the second antenna structure are at the second resonant frequency, the first capacitor is electrically disconnected from the matching circuit. 16. The antenna control method according to claim 15, wherein the first resonant frequency is a low frequency resonant frequency, and the second resonant frequency is an intermediate frequency resonant frequency or a high frequency resonant frequency.