WO2018126503A1 - Ensemble antenne et dispositif électronique - Google Patents

Ensemble antenne et dispositif électronique Download PDF

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Publication number
WO2018126503A1
WO2018126503A1 PCT/CN2017/072528 CN2017072528W WO2018126503A1 WO 2018126503 A1 WO2018126503 A1 WO 2018126503A1 CN 2017072528 W CN2017072528 W CN 2017072528W WO 2018126503 A1 WO2018126503 A1 WO 2018126503A1
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WO
WIPO (PCT)
Prior art keywords
antenna
signals
radio frequency
signal
antenna assembly
Prior art date
Application number
PCT/CN2017/072528
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English (en)
Chinese (zh)
Inventor
匡巍
Original Assignee
北京小米移动软件有限公司
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 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to CN201780000475.2A priority Critical patent/CN109075444A/zh
Priority to PCT/CN2017/072528 priority patent/WO2018126503A1/fr
Publication of WO2018126503A1 publication Critical patent/WO2018126503A1/fr

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    • 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
    • H01Q5/50—Feeding or matching arrangements for broad-band or multi-band operation

Definitions

  • the present invention relates to the field of electronic technologies, and in particular, to an antenna assembly and an electronic device.
  • RF signals that need to be sent and received, such as GPS (Global Positioning System) signals, WIFI (WIreless-FIdelity, wireless fidelity). Signal, CA (Carrier Aggregation) signal.
  • GPS Global Positioning System
  • WIFI WIreless-FIdelity, wireless fidelity
  • CA Carrier Aggregation
  • the combiner and the antenna are disposed in the electronic device, and at least two RF signals are combined into one RF signal through the combiner, and then output to the antenna through the same feed point, and the antenna transmits. Since the antenna needs to support multiple RF signals at the same time, when debugging one of the RF signals, it may affect the radiation of other RF signals that have been debugged. For example, when debugging one of the RF signals, changing the feed point or matching, it is likely to affect the radiation of other RF signals that have been debugged.
  • the present invention provides an antenna assembly and an electronic device.
  • an antenna assembly including:
  • a radio frequency transceiver component connected to the antenna through a feeding point
  • At least two grounding points respectively connected to the antenna
  • An isolation circuit is disposed between the at least two grounding points and the antenna, and is configured to divide at least one RF signal into two RF signals of different frequency bands, and transmit the signals by using at least two grounding points respectively.
  • the embodiment separates radio frequency signals of multiple frequency bands by an isolation circuit and outputs them through different grounding points.
  • the combination of different grounding points and feeding points is equivalent to combining different antennas to facilitate the transmission of radio frequency signals in different frequency bands. It not only realizes that one radio frequency signal shares one antenna, but also facilitates independent debugging of radio frequency signals in each frequency band. Reduce interference between each other.
  • the isolation circuit includes a splitter for dividing at least one RF signal into two RF signals of different frequency bands;
  • At least two outputs of the splitter are respectively connected to the at least two grounding points.
  • the present embodiment can be simplified by the splitter. Separation of RF signals in multiple frequency bands.
  • the isolation circuit includes at least two sub-isolation circuits; different sub-isolation circuits isolate radio frequency signals of different frequency bands;
  • a sub-isolation circuit is located between a ground point and the antenna.
  • the embodiment of the present invention may include the following beneficial effects: the embodiment adopts multiple sub-isolation circuits, and each sub-isolation circuit isolates radio frequency signals of other frequency bands for respective frequency bands. The quality of the RF signal that is passed can be guaranteed.
  • the antenna component further includes: at least two loading circuits for expanding a frequency band;
  • a load circuit is located between a ground point and the isolation circuit.
  • the present embodiment can expand the frequency band by loading the circuit, and improve the effective transmission of the radio frequency signal.
  • the radio frequency transceiver component comprises:
  • a synthesizing circuit for combining at least two RF signals of different frequency bands into one RF signal.
  • the present embodiment combines multiple radio frequency signals of different frequency bands into one radio frequency signal by using a synthesizing circuit to realize sharing of feeding points.
  • connection location of the at least two ground points to the antenna is related to a frequency band and a radio frequency band.
  • each frequency band and frequency band range can be tuned by adjusting the connection position of the grounding point and the antenna. Improve the transmission quality of RF signals in each frequency band.
  • an electronic device comprising: the antenna assembly according to any one of claims 1 to 6.
  • FIG. 1 is a schematic diagram of an antenna assembly, according to an exemplary embodiment.
  • FIG. 2 is a schematic diagram of an antenna assembly, according to an exemplary embodiment.
  • FIG. 3 is a schematic diagram of an antenna assembly, according to an exemplary embodiment.
  • FIG. 4 is a flow chart of an antenna assembly, according to an exemplary embodiment.
  • FIG. 5 is a schematic diagram of an antenna assembly, according to an exemplary embodiment.
  • FIG. 6 is a schematic diagram of an electronic device according to an exemplary embodiment.
  • an electronic device such as a mobile terminal needs to support a plurality of radio frequency signals.
  • the radio frequency signal includes a GPS signal, a WIFI signal, a CA signal, and the like. Different RF signals are used in different frequency bands. If the RF signals of each frequency band use a separate antenna for RF signal transmission, the occupied space is relatively large.
  • the combiner and the antenna are disposed in the electronic device, and at least two RF signals are combined into one RF signal through the combiner, and then output to the antenna through the same feed point, and the antenna transmits.
  • the antenna has only one feed point and ground point.
  • the RF signals of different frequency bands are transmitted through the same antenna, and the antenna is required to support a wider frequency band.
  • the performance of the antenna compatible with wider frequency bands is not ideal, and it is not convenient to independently debug the RF signals of each frequency band. The transmission quality of the RF signal is not good enough, and the debugging process is difficult.
  • a plurality of grounding points are added to the antenna, and each grounding point is combined with the feeding point to form a relatively independent antenna, and for each frequency band, it is an independent antenna.
  • the independent transmission of radio frequency signals in each frequency band improves the transmission quality of the radio frequency signals and facilitates the tuning of the antennas in each frequency band.
  • FIG. 1 is a schematic diagram of an apparatus for an antenna assembly according to an exemplary embodiment.
  • the apparatus includes:
  • the RF transceiver component 102 is connected to the antenna 101 through a feeding point 105;
  • At least two grounding points 103/104 respectively connected to the antenna 101;
  • the isolation circuit 106 is located between the at least two grounding points 103/104 and the antenna 101, and is configured to divide at least one RF signal into two RF signals of different frequency bands, and respectively pass at least two grounding points 103/104. transmission.
  • an isolation circuit is used to separate a multi-band RF signal into multiple RF signals of different frequency bands, and one RF signal of one frequency band is transmitted through an antenna segment corresponding to a ground point.
  • An antenna segment that combines a ground point with a feed point constitutes a separate antenna in one frequency band.
  • the antenna 101 and the feeding point 105 are combined into a single first antenna.
  • Ground point 104, antenna 101 and feed point 105 are combined into a single, second antenna.
  • First antenna and The two antennas are logically independent of each other and each is responsible for a different frequency band.
  • the RF signal of each frequency band is separated by the isolation circuit 106, so that the RF signals of each frequency band are independently transmitted, and the independent independent antennas are conveniently debugged, thereby reducing interference between each other.
  • 1 is a schematic representation of the antenna 101 in a straight line, and the antenna 101 can have other shapes depending on actual needs.
  • the isolation circuit includes a splitter for dividing at least one RF signal into two RF signals of different frequency bands;
  • At least two outputs of the splitter are respectively connected to the at least two grounding points.
  • the splitter divides one RF signal in a wider frequency band into RF signal 1 of Band 1 and RF signal 2 of Band 2.
  • the radio frequency signal 1 of the band 1 is transmitted through the grounding point 103, and the radio frequency signal 2 of the band 2 is transmitted through the grounding point 104.
  • the splitting of the multiple radio frequency signals can be realized relatively simply by the splitter.
  • the isolation circuit includes at least two sub-isolation circuits 201/202; different sub-isolation circuits isolate radio frequency signals of different frequency bands;
  • a sub-isolation circuit is located between a ground point and the antenna.
  • the sub-isolation circuit 201 is connected in series between the grounding point 103 and the antenna 101 for passing the radio frequency signal of the frequency band 1 to isolate the radio frequency signals of other frequency bands.
  • the sub-isolation circuit 202 is connected in series between the grounding point 104 and the antenna 101 for passing the radio frequency signal of the frequency band 2 to isolate the radio frequency signals of other frequency bands.
  • a sub-isolation circuit is combined with a ground point to control the transmission of radio frequency signals in one frequency band.
  • the number of bands is the same as the number of sub-isolation circuits and grounding points.
  • a sub-isolation circuit, a grounding point, an antenna and a feeding point are combined to form an independent antenna path, which controls the transmission of radio frequency signals in one frequency band, and facilitates independent tuning of the RF signal.
  • the antenna component further includes: at least two loading circuits 301 / 302 for expanding a frequency band;
  • a load circuit is located between a ground point and the isolation circuit.
  • the load circuit 301 is connected in series between the ground point 103 and the isolation circuit 106 for widening the frequency band width of the band 1.
  • the loading circuit 302 is connected in series between the grounding point 104 and the isolation circuit 106 for widening the frequency band width of the frequency band 2.
  • the loading circuit corresponds to the grounding point one by one, and the number of loading circuits is consistent with the number of grounding points, and is also consistent with the number of frequency bands.
  • the load circuit 301 is connected in series between the ground point 103 and the sub-isolation circuit 201, and the load circuit 302 is connected in series between the ground point 104 and the sub-isolation circuit 202.
  • the GPS signal, the WIFI signal and the CA signal respectively have respective frequency bands, and the radio frequency signals of the three frequency bands are respectively transmitted at three grounding points.
  • the GPS signal and the WIFI signal can share a grounding point. Compatible with multiple RF signals at a limited ground point.
  • the radio frequency transceiver component includes:
  • the synthesizing circuit 501 is configured to combine at least two radio frequency signals of different frequency bands into one radio frequency signal.
  • the radio frequency signals of different frequency bands are combined into one radio frequency signal by the synthesizing circuit to realize the sharing of the feeding points.
  • connection location of the at least two ground points to the antenna is related to a frequency band and a radio frequency band.
  • connection position of the grounding point and the antenna is related to the height of the frequency band and the width of the frequency band. Therefore, tuning of the band resonance can be achieved by adjusting the connection position of the ground point to the antenna.
  • the distance between the grounding point and the feeding point and the total grounding system is also related to the height of the frequency band and the width of the frequency band.
  • FIG. 6 is a schematic diagram of an apparatus of an electronic device 601, according to an exemplary embodiment.
  • the apparatus includes the antenna assembly described above.

Abstract

La présente invention concerne un ensemble antenne et un dispositif électronique, ceux-ci étant utilisés pour résoudre le problème selon lequel le débogage d'une antenne est difficile et selon lequel même une antenne requise ne peut pas être obtenue au moyen d'un débogage lorsque de multiples trajets de signaux radiofréquence sont transmis au moyen de la même antenne. L'ensemble antenne comprend : une antenne; un composant d'émission-réception radiofréquence connecté à l'antenne au moyen de points d'alimentation; au moins deux points de mise à la terre respectivement connectés à l'antenne; et un circuit d'isolation situé entre les au moins deux points de mise à la terre et l'antenne, et utilisé pour au moins diviser un trajet de signaux radiofréquence en deux trajets de signaux radiofréquence de différentes bandes de fréquence et les transmettant respectivement au moyen d'au moins deux points de mise à la terre.
PCT/CN2017/072528 2017-01-24 2017-01-24 Ensemble antenne et dispositif électronique WO2018126503A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201780000475.2A CN109075444A (zh) 2017-01-24 2017-01-24 天线组件及电子设备
PCT/CN2017/072528 WO2018126503A1 (fr) 2017-01-24 2017-01-24 Ensemble antenne et dispositif électronique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2017/072528 WO2018126503A1 (fr) 2017-01-24 2017-01-24 Ensemble antenne et dispositif électronique

Publications (1)

Publication Number Publication Date
WO2018126503A1 true WO2018126503A1 (fr) 2018-07-12

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Application Number Title Priority Date Filing Date
PCT/CN2017/072528 WO2018126503A1 (fr) 2017-01-24 2017-01-24 Ensemble antenne et dispositif électronique

Country Status (2)

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CN (1) CN109075444A (fr)
WO (1) WO2018126503A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111835372B (zh) * 2019-04-18 2023-06-30 北京小米移动软件有限公司 一种射频电路及无线通信设备

Citations (4)

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Publication number Priority date Publication date Assignee Title
CN103078176A (zh) * 2013-01-07 2013-05-01 华为终端有限公司 金属环耦合天线与手持式通信设备
CN103427163A (zh) * 2013-05-27 2013-12-04 信维创科通信技术（北京）有限公司 基于金属环的多频段手机天线
CN205583147U (zh) * 2016-04-18 2016-09-14 深圳市锦鸿无线科技有限公司 一种调谐开关实现多频段的手机天线
CN106329133A (zh) * 2015-07-02 2017-01-11 联发科技股份有限公司 可调天线模块和移动装置

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Publication number Priority date Publication date Assignee Title
US6816711B2 (en) * 2001-11-27 2004-11-09 Qualcomm Incorporated GPS equipped mobile phone with single shared antenna
CN101752676B (zh) * 2008-12-05 2013-01-02 沈阳铁路信号有限责任公司 应答器双工多频共用天线
CN103682565A (zh) * 2012-09-17 2014-03-26 联想(北京)有限公司 天线和用于形成天线的方法
US20160233915A1 (en) * 2015-02-10 2016-08-11 Mediatek Inc. Communication device and electronic device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103078176A (zh) * 2013-01-07 2013-05-01 华为终端有限公司 金属环耦合天线与手持式通信设备
CN103427163A (zh) * 2013-05-27 2013-12-04 信维创科通信技术（北京）有限公司 基于金属环的多频段手机天线
CN106329133A (zh) * 2015-07-02 2017-01-11 联发科技股份有限公司 可调天线模块和移动装置
CN205583147U (zh) * 2016-04-18 2016-09-14 深圳市锦鸿无线科技有限公司 一种调谐开关实现多频段的手机天线

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