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WO2016159540A1 - Appareil d'antenne et terminal mobile le comportant - Google Patents

Appareil d'antenne et terminal mobile le comportant Download PDF

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Publication number
WO2016159540A1
WO2016159540A1 PCT/KR2016/002566 KR2016002566W WO2016159540A1 WO 2016159540 A1 WO2016159540 A1 WO 2016159540A1 KR 2016002566 W KR2016002566 W KR 2016002566W WO 2016159540 A1 WO2016159540 A1 WO 2016159540A1
Authority
WO
WIPO (PCT)
Prior art keywords
feed line
base member
coupling
current
antenna
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.)
Ceased
Application number
PCT/KR2016/002566
Other languages
English (en)
Korean (ko)
Inventor
성원모
김기호
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.)
Kespion Co Ltd
Original Assignee
EMW 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 EMW Co Ltd filed Critical EMW Co Ltd
Publication of WO2016159540A1 publication Critical patent/WO2016159540A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • H01Q1/12—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
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas

Definitions

  • Embodiments of the present invention relate to antenna technology, and more particularly, to an antenna device and a mobile terminal having the same.
  • Mobile terminals for example, wearable devices such as smart phones, mobile phones, tablet computers, navigation, smart watches, etc. are generally widely portable and can be conveniently used anywhere, and thus their use is greatly expanded.
  • a metal frame is increasingly used in the case frame.
  • the current flowing through the antenna of the terminal can be induced in the metal frame, thereby degrading the performance of the antenna, for example, radiation performance. Therefore, the structure in which the metal frame can be applied to the case frame is limited, and in order to alleviate such a problem, a method of segmenting the metal frame to operate a part of the metal frame as an antenna is used.
  • a method of changing a PCB pattern, a matching element, or changing a mechanical contact point is used to adjust the resonance characteristics of the metal frame antenna. Because the frequency bandwidth cannot be satisfied, a separate antenna is used in addition to the metal frame antenna.
  • the basic frequency band of the metal frame antenna is 700 ⁇ 900 MHz
  • a separate antenna is used in the 2.3 ⁇ 2.7 GHz band. That is, the 1.7 to 2.2 GHz band can cover the multiplied frequency band of the metal rim antenna by the resonance frequency adjustment through PCB pattern change and matching element change, but in the 2.3 ⁇ 2.7 GHz band, interference occurs at the resonance synthesis point. Therefore, it cannot be covered with a metal frame antenna, so a separate antenna is used. Therefore, a separate feed cable, a feed structure, and the like for supplying current to a separate antenna are required.
  • An embodiment of the present invention is to provide an antenna device that can implement wideband while simplifying the internal structure of a mobile terminal and a mobile terminal having the same.
  • An antenna device is an antenna device in which at least one part of a plurality of segmented conductive border structures is mounted to a mobile terminal used as a border antenna, which is provided inside the mobile terminal, and the edge A substrate on which a first feed line for supplying current to the antenna is formed; And a radiating part coupled and fed by a current branching from the first feed line, wherein the current supplied to the radiating part includes a coupling structure whose phase is delayed compared to a current supplied to the edge antenna.
  • the coupling structure may include a base member provided inside the mobile terminal; A second feed line provided on one surface of the base member and through which a current branched from the first feed line flows; And a phase adjuster provided on the other surface of the base member and supplied to the radiator provided on the other surface of the base member by delaying a phase of a current flowing along the second feed line.
  • the phase adjusting unit may include: a coupling unit provided on the other surface of the base member so as to correspond to the second feed line and generate coupling with the second feed line; And a phase delay part provided between the coupling part and the radiating part on the other side of the base member and transferring the phase coupled current from the coupling part to the radiating part.
  • the current branched from the first feed line and supplied to the radiator may have a first phase delay in the coupling part and a second phase delay in the phase delay part.
  • the second feed line and the coupling part may be provided on the substrate at the base member.
  • the base member may be provided spaced apart from the substrate by a predetermined height.
  • the antenna device may further include a connection portion provided below the base member and electrically connecting the second feed line and the first feed line.
  • At least one of the radiating unit and the phase adjusting unit may be electrically connected to the ground of the substrate.
  • the edge antenna is provided to transmit and receive a first frequency band and a second frequency band higher than the first frequency band, and the coupling structure is configured to be higher than the second frequency band through resonance synthesis with the edge antenna. It may be provided to transmit and receive three frequency bands.
  • the base member provided inside the mobile terminal; A second feed line provided on one surface of the base member and branched from a first feed line for supplying current to an antenna provided at a conductive edge of the mobile terminal; Radiating portion provided on the other surface of the base member; A coupling part provided on the other surface of the base member to generate a coupling with the second feed line; And a phase delay part provided between the coupling part and the radiating part on the other side of the base member, and delaying a current coupled by the coupling part to the radiating part.
  • a mobile terminal comprising: a conductive edge structure segmented into a plurality of parts and at least one part used as an edge antenna; A substrate on which a first feed line for supplying current to the edge antenna is formed; And a radiating part coupled and fed by a current branching from the first feed line, wherein the current supplied to the radiating part includes a coupling structure whose phase is delayed compared to a current supplied to the edge antenna.
  • the coupling structure coupled with the current branched from the feed line for supplying the antenna current of the conductive frame structure, through the resonance synthesis between the coupling structure and the antenna of the conductive frame structure Broadband becomes possible.
  • the coupling structure does not have a separate feed cable and feed structure, it is possible to simplify the internal structure of the mobile terminal, thereby reducing the number of parts.
  • 1 is a plan view of the inside of the coupling structure is omitted in the mobile terminal according to an embodiment of the present invention
  • FIG. 2 is a plan view of the inside of the coupling structure in the mobile terminal according to an embodiment of the present invention
  • FIG. 3 is a schematic internal cross-sectional view of a mobile terminal according to an embodiment of the present invention.
  • FIG. 4 is a graph comparing return loss S 11 before and after mounting a coupling structure in a mobile terminal according to an embodiment of the present invention.
  • FIG. 5 is a schematic internal cross-sectional view of a mobile terminal according to another embodiment of the present invention.
  • FIGS. 1 to 5 an embodiment of an antenna device of the present invention and a mobile terminal having the same will be described in detail with reference to FIGS. 1 to 5.
  • this is only an exemplary embodiment and the present invention is not limited thereto.
  • FIG. 1 and 2 are schematic diagrams illustrating an internal plan view of a mobile terminal according to an embodiment of the present invention.
  • FIG. 1 illustrates a state without the coupling structure 106
  • FIG. 2 illustrates a state with the coupling structure 106
  • 3 is a schematic internal cross-sectional view of a mobile terminal according to an embodiment of the present invention.
  • the mobile terminal 100 may include a conductive border structure 102, a substrate 104, and a coupling structure 106.
  • the mobile terminal 100 may be a smartphone, a mobile phone, a tablet computer, a laptop, a netbook, a PDA, a PMP, an MP3 player, a navigation system, a smart camera, an electronic dictionary, a smart watch, a wearable device, or the like. It may include various types of mobile communication device.
  • the conductive edge structure 102 may be provided along the edge of the frame case (not shown) of the mobile terminal 100.
  • the conductive edge structure 102 may be provided in a plurality of segments.
  • the conductive edge structure 102 is divided into two parts of the first part 111 and the second part 113 is illustrated, the present invention is not limited thereto, and the conductive edge structure 102 is divided into three or more parts. May be
  • the conductive border structure 102 may serve to beautify the appearance of the mobile terminal 100.
  • the conductive edge structure 102 may be made of a material having electrical conductivity such as, for example, metal.
  • the first part 111 of the conductive edge structure 102 may be used as an antenna.
  • the first part 111 is also referred to as a "border antenna".
  • the first part 111 may be provided to emit electromagnetic waves by receiving a current from the substrate 104.
  • the first part 111 may be provided to transmit and receive signals of the first frequency band and the second frequency band.
  • the first part 111 may be provided to transmit and receive a first frequency band of 700 to 900 MHz and a second frequency band of 1.7 to 2.2 GHz band.
  • the first frequency band (for example, 700 to 900 MHz) may be a basic resonance frequency band of the first part 111.
  • the second frequency band may adjust the multiplication frequency band of the first frequency band by resonant frequency adjustment (for example, by changing a circuit pattern of the substrate 104 or by changing a matching element). It may be a tuned frequency band. However, the present invention is not limited thereto, and the second frequency band may be a multiplication frequency band of the first frequency band.
  • the second part 113 may be electrically connected to the ground 121 of the substrate 104. The first part 111 and the second part 113 are provided to be spaced apart from each other.
  • the substrate 104 is provided inside the mobile terminal 100. That is, the substrate 104 is provided inside the frame case (not shown).
  • the substrate 104 may be a main board of the mobile terminal 100, but is not limited thereto.
  • the substrate 104 may be provided with a region where a ground 121 is formed and a region where a non-ground 123 is formed.
  • a first feed line 125 may be formed to supply a current to the first part 111 used as an antenna.
  • One end of the first feed line 125 may be connected to the first part 111, and the other end of the first feed line 125 may be spaced apart from the ground 121.
  • the current may be supplied from the other end side of the first feed line 125 to flow along the first feed line 125 to the first part 111.
  • Feed points 129 may be provided at the other end of the first feed line 125.
  • a branch transmission line 127 branching from the first feed line 125 may be provided in the non-ground 123 region.
  • the coupling structure 106 may include a base member 131, a second feed line 133, a phase adjuster 135, and a radiator 137.
  • the base member 131 may be an insulating member having a predetermined thickness.
  • a printed circuit board (PCB), a flexible printed circuit board (FPCB), a carrier, or the like may be used, but is not limited thereto.
  • the base member 131 may be provided spaced apart from the substrate 104 by a predetermined height.
  • a base member (not shown) supporting the base member 131 may be provided below the base member 131.
  • the present invention is not limited thereto, and the base member 131 may be attached to an inner surface of the case of the mobile terminal 100 (that is, a surface facing the inside of the mobile terminal 100) and spaced apart from the substrate 104 by a predetermined height. .
  • the base member 131 may be formed parallel to the upper frame of the mobile terminal 100 at the upper portion of the non-ground 123 area of the substrate 104, and then bent toward the side frame side of the mobile terminal 100.
  • the present invention is not limited thereto, and the shape of the base member 131 may be variously changed according to the structure of the mobile terminal 100.
  • the second feed line 133 may be provided on the bottom surface of the base member 131.
  • the second feed line 133 may be provided at an upper portion of the non-ground 123 area on the bottom surface of the base member 131.
  • One side of the second feed line 133 may be electrically connected to the branch transmission line 127.
  • the connecting portion 141 is provided between the second feed line 133 and the branch transmission line 127 to provide the second feed line 133.
  • the branch transmission line 127 may be electrically connected.
  • the connection unit 141 for example, a C clip or a fog pin may be used, but is not limited thereto.
  • the branched current is the second feed line 133 through the connection portion 141 Will flow to the side.
  • the branch transmission line 127 branching from the first feed line 125 is provided in the non-ground area 123 of the substrate 104, and the second feed line 133 branches the transfer through the connecting portion 141.
  • the present invention is not limited thereto, and the second feed line 133 may be directly connected to the first feed line 125 through the connection unit 141 without providing the branch transmission line 127. May be electrically connected to the
  • the phase adjuster 135 may be provided on an upper surface of the base member 131.
  • the phase adjuster 135 changes the phase of the current flowing along the second feed line 133 and serves to supply the radiator 137.
  • the phase adjuster 135 may delay the phase of the current flowing along the second feed line 133 and supply the delayed phase to the radiator 137.
  • the phase of the current supplied to the radiator 137 is the first part 111. Delayed than the phase of the current supplied to.
  • the phase of the current supplied to the radiator 137 is delayed than the phase of the current supplied to the first part 111, so that an environment suitable for resonance synthesis between the first part 111 and the radiator 137 is provided.
  • This composition allows broadband to be made possible.
  • the phase adjuster 135 may delay the phase of the current flowing along the second feed line 133 to the radiator 137 by delaying 180 degrees (or ⁇ / 2), for example, but is not limited thereto.
  • the phase adjuster 135 may include a coupling unit 135-1 and a phase delay unit 135-2.
  • the coupling part 135-1 may be provided to correspond to the second feed line 133 on the upper surface of the base member 131.
  • the coupling part 135-1 is electromagnetically coupled to the second feed line 133. That is, when current flows along the second feed line 133 provided on the bottom surface of the base member 131, the base member 131 is formed by coupling between the second feed line 133 and the coupling unit 135-1. A current flows through the coupling part 135-1 provided on the upper surface of the coupling part.
  • the coupling unit 135-1 and the second feed line 133 may be provided so that coupling occurs at an upper portion of the non-ground 123 region. In this case, the influence of the ground 121 of the substrate 104 can be minimized.
  • the base member 131 since the base member 131 is spaced apart from the substrate 104 by a predetermined height, the coupling efficiency between the second feed line 133 and the coupling unit 135-1 may be improved.
  • the base member 131 uses a thin material such as FPCB, the coupling loss can be reduced when the second feed line 133 and the coupling part 135-1 are coupled to each other.
  • the coupling unit 135-1 of the coupling unit 135-1 may generate a 90 degree (or ⁇ / 4) phase delay compared to the current flowing in the second feed line 133. At least one of the length and the line width may be adjusted, but is not limited thereto.
  • the phase delay unit 135-2 may be provided between the coupling unit 135-1 and the radiating unit 137 on the upper surface of the base member 131. One end of the phase delay unit 135-2 may be connected to the coupling unit 135-1, and the other end of the phase delay unit 135-2 may be connected to the radiation unit 137. The phase delay unit 135-2 may delay the current flowing through the coupling unit 135-1 and transmit the phase delay to the radiator 137.
  • the phase delay unit 135-2 may be configured to delay the current flowing through the coupling unit 135-1, for example, by 90 degrees (or ⁇ / 4) in phase length and line width. At least one may be adjusted, but is not limited thereto.
  • the first phase delay occurs in the coupling unit 135-1, and the phase delay unit 135-2 is generated.
  • a second phase delay occurs at and is transmitted to the radiator 137.
  • the radiating unit 137 is supplied to the radiator 137.
  • the current has a phase delay of 180 degrees compared to the current branched from the first feed line 125.
  • the radiating part 137 may be provided on an upper surface of the base member 131.
  • the radiator 137 is connected to the phase adjuster 135.
  • the radiator 137 receives the coupling feed by the phase adjuster 135 generating the coupling with the second feed line 133.
  • the radiator 137 may be provided to transmit and receive a signal of a third frequency band through resonance synthesis with the first part 111.
  • the radiator 137 may be provided to transmit and receive a third frequency band in the 2.3 to 2.7 GHz band through resonance synthesis with the first part 111.
  • the current supplied to the radiator 137 has a phase delay suitable for resonant synthesis by the phase adjuster 135 compared to the current supplied to the first part 111, thereby minimizing interference at the resonant synthesis point.
  • resonance occurs in a desired frequency band (ie, a third frequency band).
  • the coupling structure includes a coupling structure 106 which is coupled with a current branched from the first feed line 125 for supplying current to the first part 111 to receive power.
  • Broadband can be achieved through resonant synthesis of the 106 and the first part 111.
  • the first part 111 transmits and receives signals in the first frequency band and the second frequency band
  • the coupling structure 106 transmits and receives the third frequency band adjacent to the second frequency band, thereby providing a second frequency. Widening from the band to the third frequency band is possible.
  • the coupling structure 106 does not have a separate feed cable and feed structure, it is possible to simplify the internal structure of the mobile terminal 100, thereby reducing the number of parts.
  • the base member 131 is described as being spaced apart from the substrate 104 by a predetermined height, the present invention is not limited thereto, and the base member 131 may be provided on the substrate 104.
  • the second feed line 133 may be provided on the bottom surface of the base member 131 or may be provided on the substrate 104.
  • the reflection loss S 11 before mounting the coupling structure 106 inside the mobile terminal 100 (that is, when only the first part 111 is present) is described. It can be seen that resonance occurs at 700 to 900 MHz (that is, the first frequency band) which is the basic resonance frequency of 111.
  • the resonance frequency may be adjusted by adjusting the multiplication frequency band of the first frequency band to generate resonance at 1.7 to 2.2 GHz (that is, the second frequency band).
  • the mobile terminal 100 does not generate resonance in the third frequency band (for example, 2.3 to 2.7 GHz) required for communication such as Long Term Evolution (LTE) or Bluetooth.
  • the reflection loss S 11 is described. It can be seen that resonance occurs not only in the first frequency band (700 to 900 MHz) and the second frequency band (1.7 to 2.2 GHz) but also in the third frequency band (2.3 to 2.7 GHz). That is, resonance occurs in the third frequency band through resonance synthesis of the first part 111 and the coupling structure 106, and thus resonance occurs in the band of 1.7 to 2.7 GHz so that wideband can be realized. do.
  • Table 1 is a table comparing the antenna performance before and after mounting the coupling structure according to an embodiment of the present invention in the mobile terminal.
  • the antenna performance after mounting the coupling structure 106 inside the mobile terminal 100 is to mount the coupling structure 106 inside the mobile terminal 100. It can be seen that it is superior to the previous antenna performance.
  • FIG. 5 is a schematic internal cross-sectional view of a mobile terminal according to another embodiment of the present invention.
  • the parts that differ from the embodiments shown in FIGS. 2 and 3 will be mainly described.
  • the coupling structure 106 may be electrically connected to the ground 121 of the substrate 104 for impedance matching.
  • the radiating part 137 provided on the upper surface of the base member 131 may be provided to be electrically connected to the ground 121.
  • a via hole 143 penetrating the base member 131 may be formed in the base member 131.
  • the conductive material may be filled in the via hole 143.
  • a connection portion 145 may be provided between the base member 131 and the ground 121 under the via hole 143.
  • the radiating part 137 provided on the upper surface of the base member 131 is electrically connected to the ground 121 through the via hole 143 and the connecting part 145.
  • a portion of the radiating part 137 may be provided on the ground 121 on the upper surface of the base member 131.
  • the radiator 137 is described as being electrically connected to the ground 121, but the present invention is not limited thereto, and the phase adjuster 135 may be electrically connected to the ground 121. In addition, the radiator 137 and the phase adjuster 135 may be electrically connected to the ground 121, respectively.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
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Abstract

L'invention concerne un appareil d'antenne et un terminal mobile le comportant. L'appareil d'antenne selon un mode de réalisation de la présente invention est un appareil d'antenne qui est monté sur un terminal mobile, dans lequel une ou plusieurs parties d'une structure de bord conductrice qui est divisée en une pluralité de parties sont utilisées comme antenne de bord, et qui comprend : un substrat agencé à l'intérieur du terminal mobile et sur lequel est formée une première ligne d'alimentation électrique pour fournir du courant à l'antenne de bord ; et une structure de couplage comprenant une partie d'émission qui est alimentée par couplage par un courant prélevé de la première ligne d'alimentation électrique, la phase du courant fourni à la partie d'émission étant retardée par rapport à celle du courant fourni à l'antenne de bord.
PCT/KR2016/002566 2015-03-31 2016-03-15 Appareil d'antenne et terminal mobile le comportant Ceased WO2016159540A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2015-0044754 2015-03-31
KR1020150044754A KR102244602B1 (ko) 2015-03-31 2015-03-31 안테나 장치 및 이를 구비하는 모바일 단말기

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WO2016159540A1 true WO2016159540A1 (fr) 2016-10-06

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PCT/KR2016/002566 Ceased WO2016159540A1 (fr) 2015-03-31 2016-03-15 Appareil d'antenne et terminal mobile le comportant

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WO (1) WO2016159540A1 (fr)

Families Citing this family (1)

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Publication number Priority date Publication date Assignee Title
KR102128882B1 (ko) * 2019-07-31 2020-07-01 주식회사 이엠따블유 안테나 및 이를 포함하는 모바일 디바이스

Citations (5)

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KR20050066342A (ko) * 2003-12-26 2005-06-30 인탑스 주식회사 전자기적 커플링 급전방식을 이용한 역 에프형 내장형안테나
KR20050091396A (ko) * 2004-03-12 2005-09-15 인탑스 주식회사 전자기적 커플링을 이용한 이동통신단말기용 내장형 루프안테나
KR20050098236A (ko) * 2003-01-30 2005-10-11 마쯔시다덴기산교 가부시키가이샤 안테나 장치
KR20080061082A (ko) * 2006-12-28 2008-07-02 엘지전자 주식회사 안테나 및 이동단말기
KR20120117048A (ko) * 2011-04-14 2012-10-24 삼성전자주식회사 휴대용 단말기의 안테나 장치

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Publication number Priority date Publication date Assignee Title
KR20100030522A (ko) * 2008-09-10 2010-03-18 (주)에이스안테나 전자기적 커플링을 이용한 다중 대역 안테나

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050098236A (ko) * 2003-01-30 2005-10-11 마쯔시다덴기산교 가부시키가이샤 안테나 장치
KR20050066342A (ko) * 2003-12-26 2005-06-30 인탑스 주식회사 전자기적 커플링 급전방식을 이용한 역 에프형 내장형안테나
KR20050091396A (ko) * 2004-03-12 2005-09-15 인탑스 주식회사 전자기적 커플링을 이용한 이동통신단말기용 내장형 루프안테나
KR20080061082A (ko) * 2006-12-28 2008-07-02 엘지전자 주식회사 안테나 및 이동단말기
KR20120117048A (ko) * 2011-04-14 2012-10-24 삼성전자주식회사 휴대용 단말기의 안테나 장치

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KR20160116662A (ko) 2016-10-10
KR102244602B1 (ko) 2021-04-26

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