WO2019242577A1 - Structure à antennes multiples et dispositif de communication mobile - Google Patents

Structure à antennes multiples et dispositif de communication mobile Download PDF

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Publication number
WO2019242577A1
WO2019242577A1 PCT/CN2019/091488 CN2019091488W WO2019242577A1 WO 2019242577 A1 WO2019242577 A1 WO 2019242577A1 CN 2019091488 W CN2019091488 W CN 2019091488W WO 2019242577 A1 WO2019242577 A1 WO 2019242577A1
Authority
WO
WIPO (PCT)
Prior art keywords
radiator
feeding point
signal source
point
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/CN2019/091488
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English (en)
Chinese (zh)
Inventor
李钦岗
胡育根
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.)
Hisense Mobile Communications Technology Co Ltd
Original Assignee
Hisense Mobile Communications Technology 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 Hisense Mobile Communications Technology Co Ltd filed Critical Hisense Mobile Communications Technology Co Ltd
Publication of WO2019242577A1 publication Critical patent/WO2019242577A1/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
    • H01Q1/12—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
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • 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
    • 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
    • H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way

Definitions

  • the present application relates to the technical field of communication terminals, and in particular, to a multi-antenna structure and mobile communication equipment.
  • MIMO Multiple-Input Multiple-Output
  • the MIMO technology refers to configuring multiple transmitting antennas and receiving antennas on the transmitting end and the receiving end respectively, so that signals are transmitted and received through multiple antennas on the transmitting end and the receiving end, thereby improving communication quality.
  • MIMO technology can make full use of space resources and achieve multiple transmissions and multiple receptions through multiple antennas. Without increasing spectrum resources and antenna transmit power, it can double the system channel capacity and show obvious advantages, so it is considered as the next The core technology of next generation mobile communication.
  • the embodiments of the present application provide a multi-antenna structure and a mobile communication device, which can be arranged in a small space.
  • an embodiment of the present application provides a multi-antenna structure including a radiator, the radiator includes a first feeding point, a second feeding point, and a third feeding point, and the second A feeding point is located between the first feeding point and a third feeding point; a first signal source, and the first signal source is electrically connected to a first feeding point of the radiator through a first matching circuit; A second signal source, the second signal source includes a first output terminal and a second output terminal, the first output terminal is connected to a third feeding point of the radiator through a second matching circuit, and the second The output end is connected to the second feeding point of the radiator through a third matching circuit, and further includes a switch. The fixed end of the switch is connected to the second feeding point.
  • the active end of the switch is selected.
  • a ground connection or the second output terminal, a third matching circuit is provided between the movable terminal and the second output terminal, and when the switch is switched to the first working position, the switch Communicating the second feeding point of the radiator with the ground, connecting the The second feed point of the radiator is disconnected from the third matching circuit; when the switch is switched to the second working position, the switch switches the second feed point of the radiator and the first matching point
  • the three matching circuits are connected to disconnect the second feeding point of the radiator from the ground.
  • an embodiment of the present application further provides a mobile communication device, including the multi-antenna structure described in the above technical solution.
  • FIG. 1 is a schematic structural diagram of a multiple antenna structure according to an embodiment of the present application
  • FIG. 2 is a schematic structural diagram of a multi-antenna structure according to an embodiment of the present application when a switch is switched to a first working position;
  • FIG. 3 is a schematic structural diagram of a multi-antenna structure according to an embodiment of the present application when a switch is switched to a second working position;
  • FIG. 4 is another schematic structural diagram of a multi-antenna structure according to an embodiment of the present application.
  • FIG. 5 is a partial structural schematic diagram of a metal rear case in a mobile communication device according to an embodiment of the present application.
  • first and second are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as “first” and “second” may explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise stated, "a plurality" means two or more.
  • a multi-antenna structure provided by an embodiment of the present application includes a radiator 1, and the radiator 1 includes a first feeding point 11, a second feeding point 12, and a third feeding point 13.
  • the second feeding point 12 is located between the first feeding point 11 and the third feeding point 13; a first signal source 2; the first signal source 2 is connected to the first signal source 2 through a first matching circuit 21;
  • the first feed point 11 of the radiator 1 is electrically connected;
  • the second signal source 3 includes a first output terminal 31 and a second output terminal 32, and the first output terminal 31 is passed through a second matching
  • the circuit 33 is connected to the third feeding point 13 of the radiator 1, and the second output terminal 32 is connected to the second feeding point 12 of the radiator 1 through a third matching circuit 34, and further includes a switch 4
  • the fixed end 41 of the changeover switch 4 is connected to the second feeding point 12, and the active end 42 of the changeover switch 4 is selectively connected to the ground GND or the second output end 32.
  • the active end 42 is connected to the second output point 32.
  • a third matching circuit 34 is disposed between the second output terminals 32.
  • the changeover switch 4 when the changeover switch 4 is switched to the first working position, the changeover switch 4 communicates the second feeding point 12 of the radiator 1 with the ground, and connects the first The second feeding point 12 is disconnected from the third matching circuit 34.
  • the changeover switch 4 when the changeover switch 4 is switched to the second working position, the changeover switch 4 communicates the second feeding point 12 of the radiator 1 with the third matching circuit 34, The second feed point 12 of the radiator 1 is disconnected from the ground.
  • the switch 4 is a single-pole double-throw switch.
  • the switch 4 when the first signal source 2 and the second signal source 3 are required to work simultaneously in a dual antenna scenario, the switch 4 can be switched to the first working position, so that the switch 4 will
  • the second feeding point 12 of the radiator 1 is connected to the ground, and the second feeding point 12 of the radiator 1 is disconnected from the third matching circuit 34.
  • antenna branches can be formed respectively from the first feeding point 11 to one end of the radiator 1 and from the third feeding point 13 to the other end of the radiator 1, and at the same time, the ground of the second feeding point 12 can make the two antennas more flexible. High isolation.
  • the switch 4 can be switched to the second working position, so that the switch 4 will switch the second feed point 12 of the radiator 1 to
  • the third matching circuit 34 communicates and disconnects the second feeding point 12 of the radiator 1 from the ground, so that the first signal source 2 can be connected to an antenna branch supporting the first frequency band, and the second signal source 3 Connected to two ends of radiator 1 through two feed points and connected to antenna branches that support two different frequency bands.
  • the second signal source 3 is connected to one end of the radiator 1 through the third feeding point 13 to the radiator 1 and the second signal source 3 is connected to the other radiator 1 through the second feeding point 12.
  • the second signal source 3 has a multi-band working scenario.
  • the switching between the two working positions by the switch 4 can achieve high isolation in the same frequency band and compatibility of multi-feed multi-band antennas, so that a multi-antenna structure can be arranged in a narrow space.
  • the function of the matching circuit (that is, the first matching circuit 21, the second matching circuit 33, and the third matching circuit 34) is to adjust the self impedance of the antenna to the same as the impedance of the signal source, so that the current energy can be passed through the antenna to the maximum extent. Converted into electromagnetic radiation energy.
  • the configuration of the matching circuit may be a capacitor or an inductor. Those skilled in the art may select the matching of components and parameter values of the matching circuit according to different products and different design scenarios, which is not specifically limited herein.
  • the radiator 1 may have a long structure, and the first feeding point 11, the second feeding point 12, and the third feeding point 13 are sequentially arranged along the same straight direction of the radiator 1. .
  • the shape of the radiator 1 is not limited to a long shape, and may be any other shape.
  • the first feeding point 11 may be disposed near the first end 14 of the radiator 1, and the third feeding point 13 may be disposed near the second end 15 of the radiator 1.
  • the first end 14 and the second end 15 of the radiator are located on the same straight line as the first feeding point 11, the second feeding point 12 and the third feeding point 13.
  • the distance from the first feeding point 11 to the first end 14 of the radiator 1 is equal to the third feeding point 13 to the first end of the radiator 1.
  • the terminals 15 respectively form antenna branches of the first frequency band f1, and two ground antennas in the same frequency band can have higher isolation due to the grounding of the second feeding point 12. Therefore, when the switch 4 is switched to the first In the working position, the first signal source 2 and the second signal source 3 can make the dual antennas in the same frequency band work better simultaneously.
  • the switch 4 can be switched from the first working position to the second working position, so that the first feeding point 11 to the first end 14 of the radiator 1 forms a first frequency band.
  • the antenna branch of f1 the second feed point 12 to the first end 14 of the radiator 1 forms an antenna branch of the second frequency band f2
  • the third feed point 13 to the second end 15 of the radiator 1 forms the first frequency band f1.
  • the second feed point 12 to the first end 14 of the radiator 1 forms an antenna branch of the second frequency band f2. This is because the section from the second feed point 12 to the first end 14 of the radiator 1 is generated in the second frequency band f2. Resonant part.
  • the first signal source 2 and the second signal source 3 can be transmitted in the same frequency band signal.
  • the first signal source 2 and the second signal source 3 can transmit simultaneously when transmitting signals in different frequency bands.
  • the first signal source 2 and the second signal source 3 are both connected to an antenna branch supporting the first frequency band f1
  • the second signal source 3 is also connected to an antenna branch supporting at least one second frequency band f2 different from the first frequency band f1.
  • the second frequency band may be at least one frequency band corresponding to CDMA, GSM, wifi, and GPS.
  • the first frequency band f1 signal and at least one second frequency band f2 signal are transmitted simultaneously.
  • the embodiment of the present application does not limit the form of the radiator 1.
  • the radiator 1 may be a monopole antenna, a PIFA (Planar Inverted F-shaped Antenna) antenna, or a loop (LOOP) antenna, that is, the radiator 1
  • the ground point for changing the function of the antenna may be added, for example, a ground point is added at a predetermined position of the radiator 1. These ground points that change the function of the antenna have nothing to do with the effect of improving the isolation of the antenna.
  • the switch 4 is a variable capacitor.
  • One end of the variable capacitor is connected to the second feeding point 12 as a fixed end, and the other end is selectively connected to the ground GND or the third matching circuit 34 as a movable end.
  • the variable capacitor is switched between a first working position and a second working position. In the first working position, the second feeding point 12 of the radiator 1 is connected to the ground, and the second feeding point 12 of the radiator 1 is disconnected from the third matching circuit 34. In the second working position, the second feeding point 12 of the radiator 1 is disconnected from the ground, and the second feeding point 12 of the radiator 1 is in communication with the third matching circuit 34.
  • an embodiment of the present application provides a mobile communication device including the multi-antenna structure described in any one of the foregoing embodiments.
  • the switch 4 can be switched to the first working position, so that the switch 4 can communicate the second feed point 12 of the radiator 1 with the ground, and connect the second feed point 12 of the radiator 1 with the ground.
  • the third matching circuit 34 is turned off, so that the first feeding point 11 to one end of the radiator 1 and the third feeding point 13 to the other end of the radiator 1 may form antenna branches, respectively.
  • the ground at point 12 can make the two antennas have higher isolation.
  • the switch 4 can be switched to the second working position, so that The switch 4 communicates the second feeding point 12 of the radiator 1 with the third matching circuit 34, and disconnects the second feeding point 12 of the radiator 1 from the ground, so that the first A signal source 2 is connected to an antenna branch supporting the first frequency band, and a second signal source 3 Respectively through the two feeding points at both ends of the body 1 to the radiation, so that the second signal source 3 is connected to two distinct bands of antenna branches.
  • the second signal source 3 has a multi-band working scenario.
  • the switching between the two working positions by the switch 4 can achieve high isolation in the same frequency band and compatibility of multi-feed multi-band antennas, so that a multi-antenna structure can be arranged in a narrow space.
  • the radiator 1 can be formed by using the metal shell, that is, a part of the metal shell is used as the radiator 1 alone, and the part is insulated from the rest of the metal shell. This saves material and installation space. And because multiple antennas share a radiator 1, there is no need to cut the metal shell into multiple pieces, making the process simple and the structure neat.
  • the metal case includes a metal back case 5 and a radiator 1, the metal back case 5 and the radiator 1 are insulated and connected, the metal back case 5 is a reference ground, and a ground point of the radiator 1 is connected to the ground The metal back shell 5 is connected. Therefore, the reference ground and the radiator 1 are formed at the same time by using the metal casing, thereby further saving installation space and material costs.
  • the radiator 1 has a long structure and extends along the width direction of the mobile communication device, so that the radiator 1 can be designed to correspond to the width dimension of the metal back shell 5 to make the back structure of the mobile communication device. More compact and neat.
  • the first end 14 and the second end 15 of the radiator 1 can be formed into a bent portion, and the metal back shell 5 corresponds to the bent portion.
  • a recessed portion is formed at a position, so that the bent portion is connected with the recessed portion to improve the stability of the connection.
  • the mobile communication device in the embodiment of the present application may be a communication device such as a mobile phone or a tablet computer capable of talking, which is not limited herein.

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

Abstract

L'invention porte sur une structure à antennes multiples et sur un dispositif de communication mobile. La structure à antennes multiples de la présente invention comprend un radiateur, le radiateur comprenant un premier point d'alimentation, un deuxième point d'alimentation et un troisième point d'alimentation, et le deuxième point d'alimentation étant situé entre le premier point d'alimentation et le troisième point d'alimentation; une première source de signal qui est électriquement connectée au premier point d'alimentation du radiateur au moyen d'un premier circuit d'adaptation; et une seconde source de signal, la seconde source de signal comprenant une première extrémité de sortie et une seconde extrémité de sortie, la première extrémité de sortie étant connectée au troisième point d'alimentation du radiateur au moyen d'un deuxième circuit d'adaptation, et la seconde extrémité de sortie étant connectée au deuxième point d'alimentation du radiateur au moyen d'un troisième circuit d'adaptation. Un commutateur de transfert est en outre compris; l'extrémité de fixation du commutateur de transfert est connectée au deuxième point d'alimentation; l'extrémité mobile du commutateur de transfert est sélectivement connectée à la masse ou connectée à la seconde extrémité de sortie; le troisième circuit d'adaptation est disposé entre l'extrémité mobile et la seconde extrémité de sortie.
PCT/CN2019/091488 2018-06-20 2019-06-17 Structure à antennes multiples et dispositif de communication mobile Ceased WO2019242577A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201810640616.3 2018-06-20
CN201810640616.3A CN110620290B (zh) 2018-06-20 2018-06-20 一种多天线结构及移动通讯设备

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WO2019242577A1 true WO2019242577A1 (fr) 2019-12-26

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Cited By (1)

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US12374793B2 (en) * 2020-12-29 2025-07-29 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Antenna assembly and electronic device

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CN111211421A (zh) * 2020-03-19 2020-05-29 惠州Tcl移动通信有限公司 天线调谐电路及移动终端
CN112737629A (zh) 2020-12-18 2021-04-30 展讯通信（上海）有限公司 一种通信方法、装置和电子设备
CN114665256B (zh) * 2020-12-22 2024-03-01 深圳市万普拉斯科技有限公司 天线结构、移动终端及频段切换方法
CN115579615B (zh) 2021-06-21 2025-06-27 深圳富泰宏精密工业有限公司 天线结构及具有该天线结构的电子设备
CN117175185A (zh) * 2022-05-27 2023-12-05 Oppo广东移动通信有限公司 天线装置和电子设备

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JP2007104468A (ja) * 2005-10-06 2007-04-19 Matsushita Electric Ind Co Ltd 携帯無線機
CN103066375A (zh) * 2011-10-20 2013-04-24 宏达国际电子股份有限公司 手持式装置及其平面天线
CN106299604A (zh) * 2016-09-14 2017-01-04 宇龙计算机通信科技(深圳)有限公司 天线装置及移动终端

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Publication number Priority date Publication date Assignee Title
US12374793B2 (en) * 2020-12-29 2025-07-29 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Antenna assembly and electronic device

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CN110620290A (zh) 2019-12-27
CN110620290B (zh) 2020-10-30

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