WO2012079305A1 - Antenne terminale - Google Patents

Antenne terminale Download PDF

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Publication number
WO2012079305A1
WO2012079305A1 PCT/CN2011/071268 CN2011071268W WO2012079305A1 WO 2012079305 A1 WO2012079305 A1 WO 2012079305A1 CN 2011071268 W CN2011071268 W CN 2011071268W WO 2012079305 A1 WO2012079305 A1 WO 2012079305A1
Authority
WO
WIPO (PCT)
Prior art keywords
antenna
mhz
matching circuit
terminal
matching circuits
Prior art date
Application number
PCT/CN2011/071268
Other languages
English (en)
Chinese (zh)
Inventor
江晖
艾浩
Original Assignee
中兴通讯股份有限公司
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 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Publication of WO2012079305A1 publication Critical patent/WO2012079305A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/18—Input circuits, e.g. for coupling to an antenna or a transmission line

Definitions

  • the present invention relates to a communication hub or, in particular, to a terminal antenna.
  • LTE Long-Term Evolution
  • 3G Third Generation Partnership Project
  • LTE-type terminals must also rely on existing 3G and 2G communication networks. Otherwise, the scope of use of LTE-type terminals will be small and the user experience will be poor.
  • LTE Long Term Evolution
  • 3G 3G
  • MIMO multiple input multiple output
  • FIG. 1 is a schematic diagram of the antenna design according to the prior art.
  • the antenna generally includes a monopole.
  • An antenna such as an antenna monopole, a Planer Inverted F-shaped Antenna (PIFA) or an Inverted F-shaped Antenna (IFA).
  • PIFA Planer Inverted F-shaped Antenna
  • IFA Inverted F-shaped Antenna
  • a primary object of the present invention is to provide a terminal antenna to at least solve the above problems.
  • a terminal antenna including: an antenna and a matching circuit, wherein the matching circuit is at least two groups, and the antenna is connected to the matching circuit of the at least two groups, wherein each A group matching circuit is used to operate the antenna at a predetermined frequency range.
  • the antenna and the at least two sets of matching circuits are connected by a switch for switching the matching circuit.
  • the switch is located between the matching circuit of the at least two groups and the feed point of the antenna.
  • the matching circuit is two groups, one of which enables the antenna to operate at 746 MHz to 787 MHz, and the other group enables the antenna to operate at 824 MHz to 960 MHz and 1710 MHz to 2170 MHz.
  • the matching circuit is three groups, the first group enables the antenna to operate at 746 MHz to 787 MHz, the second group enables the antenna to operate at 824 MHz to 894 MHz, and the third group enables the antenna to operate at 925 MHz to 960 MHz and 1710MHz ⁇ 2170MHz.
  • the antenna includes a primary antenna and a secondary antenna, wherein the primary antenna and the secondary antenna are respectively disposed on a bracket.
  • the type of the antenna is at least one of the following: a monopole antenna Monopole, an inverted F antenna IFA, and a planar inverted F antenna PIFA.
  • FIG. 1 is a schematic diagram of a scheme of an antenna design according to prior art
  • 2 is a schematic diagram of an antenna design of two sets of matching circuits according to a preferred embodiment of the present invention
  • FIG. 3 is a schematic diagram of an antenna design of three sets of matching circuits for use in accordance with a preferred embodiment of the present invention.
  • a terminal antenna including: an antenna and a matching circuit, wherein the matching circuit is at least two groups, and the antenna is connected with at least two sets of matching circuits, and each group of matching circuits is used to make the antenna work.
  • the predetermined frequency range Through the antenna, the number of matching circuits is increased, and the antenna efficiency is improved compared to the prior art without increasing the size of the PCB and sacrificing certain frequency bands.
  • the antenna and at least two sets of matching circuits are connected by a switch for switching the matching circuit.
  • the connection antenna and the at least two sets of matching circuits do not need to be switches, and may be other embodiments as long as the purpose of switching the matching circuit can be achieved.
  • the switch may be preferably located between at least two sets of matching circuits and feed points of the antenna.
  • the matching circuit is two groups, one of which enables the antenna to operate at 746 MHz to 787 MHz, and the other group enables the antenna to operate at 824 MHz to 960 MHz and 1710 MHz to 2170 MHz.
  • the matching circuit is three groups, the first group enables the antenna to operate at 746 MHz to 787 MHz, the second group enables the antenna to operate at 824 MHz to 894 MHz, and the third group enables the antenna to operate at 925 MHz to 960 MHz and 1710 MHz to 2170 MHz.
  • the related problems existing in the prior art are solved, and the performance of the LTE multimode terminal antenna is realized, and the size of the terminal product is also small.
  • a multi-frequency terminal antenna supporting LTE will be described as an example.
  • the antenna in this embodiment includes: a primary antenna and a secondary antenna. It should be noted that the design principles of the two antennas are the same as those in the prior art, that is, the primary and secondary antennas are commonly used monopoles, IFAs, or Antennas such as PIFA; two built-in antenna brackets. It should be noted that each antenna bracket is the same as the existing antenna bracket.
  • the antenna can be fixed on the bracket using steel sheet or FPC; two or more sets
  • the matching circuit, each set of matching circuits corresponds to one antenna working frequency band, and the plurality of sets of matching circuits can enable the antenna to realize a wide frequency band.
  • the preferred embodiment provides a design scheme of a multi-frequency terminal antenna supporting LTE.
  • the switching of the matching circuit is performed by using two or more sets of matching circuits and introducing a switch between the antenna matching circuit and the antenna feed point.
  • each set of matching circuits enables the antennas to operate in different frequency bands, and the combination can make the antenna work in a wide frequency band.
  • the following is an example of a global analog terminal antenna supporting LTE bandl3.
  • the working frequency band of LTE band 13 is 746MHz ⁇ 787MHz, and other modes of global mode include GSM/EVDO/UMTS.
  • EVDO and Universal Mobile Telecommunications System (UMTS) support diversity reception, and its working frequency band is 824MHz ⁇ 960MHz and 1710MHz ⁇ 2170MHz. Therefore, for the antenna design, it is necessary to design two antennas with operating bands of 746MHz ⁇ 960MHz and 1710MHz ⁇ 2170MHz, which makes the antenna design difficult, especially the bandwidth at the low frequency end is difficult to achieve. If the antenna is designed in the prior art, the required PCB size and antenna area are quite large, which is obviously unrealistic for the pursuit of a small-sized terminal product.
  • the antenna design scheme can be used to make the main antenna and the sub-antenna respectively on a conventional bracket, and the antenna adopts a general type of antenna such as Monopole, IFA or PIFA, and the antenna has a resonance at the high frequency end and the low frequency end. And a certain bandwidth, but the bandwidth at the low end is difficult to meet 746MHz ⁇ 960MHz requirements.
  • FIG. 2 is a schematic diagram of an antenna design scheme using two sets of matching circuits according to a preferred embodiment of the present invention, as shown in FIG. 2, wherein the matching circuit 1 operates the antenna at 746 Mz ⁇ 787 MHz, and the matching circuit 2 operates the antenna at 824 MHz.
  • FIG. 3 is a schematic diagram of an antenna design scheme using three sets of matching circuits according to a preferred embodiment of the present invention, as shown in FIG.
  • the matching circuit 1 operates the antenna at 746 Mz ⁇ 787 MHz
  • the matching circuit 2 operates the antenna at 824 MHz ⁇ 894 MHz
  • the matching circuit 3 operates the antenna at 925 MHz to 960 MHz and 1710 MHz to 2170 MHz.
  • the three sets of matching circuits are switched by switches, and there is no special requirement for the type of switches, which is located between the antenna matching circuit and the antenna feed point. This also allows the antenna to operate in the 746MHz ⁇ 960MHz and 1710MHz ⁇ 2170MHz frequency bands.
  • terminal antennas that can work simultaneously in the 2G, 3G, and 4G modes (the 2G system mainly includes GSM, the 3G system mainly includes EVDO and UMTS, and the 4G system mainly includes LTE) are provided to meet the requirements.
  • the MIMO receiving performance of the 4G system and the diversity receiving function of the 3G system meet the requirements of the physical size of the terminal product as small as possible.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Details Of Aerials (AREA)
  • Support Of Aerials (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

Le modèle d'utilité de l'invention concerne une antenne terminale. L'antenne terminale inclut : une antenne et des circuits d'adaptation d'impédance, les circuits d'adaptation d'impédance représentant au moins deux groupes de circuits d'adaptation d'impédance qui sont reliés à l'antenne, chaque groupe de circuits d'adaptation d'impédance étant utilisé pour permettre à l'antenne de travailler dans des plages de fréquences prédéfinies. En utilisant le modèle d'utilité, on résout les problèmes de la technique antérieure, provoqués par la conception de l'antenne, qui est mise en œuvre en agrandissant la taille de la carte à circuit imprimé (PCB) ou en laissant de côté certaines bandes de fréquences auxiliaires ; et donc on obtient l'amélioration de l'efficacité de l'antenne sans agrandir la taille de la carte à circuit imprimé ni laisser de côté certaines bandes de fréquences.
PCT/CN2011/071268 2010-12-15 2011-02-24 Antenne terminale WO2012079305A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201020660813.0 2010-12-15
CN2010206608130U CN201975511U (zh) 2010-12-15 2010-12-15 终端天线

Publications (1)

Publication Number Publication Date
WO2012079305A1 true WO2012079305A1 (fr) 2012-06-21

Family

ID=44580608

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2011/071268 WO2012079305A1 (fr) 2010-12-15 2011-02-24 Antenne terminale

Country Status (2)

Country Link
CN (1) CN201975511U (fr)
WO (1) WO2012079305A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103050790A (zh) * 2011-10-15 2013-04-17 成都锐奕信息技术有限公司 标准封装电容的rfid天线双电容谐振电路
CN103094671A (zh) * 2011-10-28 2013-05-08 成都高新区尼玛电子产品外观设计工作室 兼容式射频天线电路
CN102637964A (zh) * 2012-04-28 2012-08-15 上海华勤通讯技术有限公司 天线系统及其移动终端
CN106025545B (zh) * 2016-06-29 2018-09-04 广东欧珀移动通信有限公司 天线装置及终端设备

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1370341A (zh) * 2000-06-12 2002-09-18 三菱电机株式会社 便携式无线电单元
CN1457533A (zh) * 2001-03-03 2003-11-19 皇家菲利浦电子有限公司 用于无线电通信设备的多频段天线装置
CN1674452A (zh) * 2004-03-24 2005-09-28 乐金电子(中国)研究开发中心有限公司 一种移动通讯终端天线的匹配电路及方法
CN1868134A (zh) * 2003-10-17 2006-11-22 诺基亚有限公司 用于多频段多模式通信机的mimo和分集前端装置
CN101212230A (zh) * 2006-12-26 2008-07-02 中兴通讯股份有限公司 一种手机dvb-h天线匹配网络的实现装置及其方法
CN101388486A (zh) * 2008-10-31 2009-03-18 清华大学 用于数字电视广播移动终端的匹配网络可重构的内置天线

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1370341A (zh) * 2000-06-12 2002-09-18 三菱电机株式会社 便携式无线电单元
CN1457533A (zh) * 2001-03-03 2003-11-19 皇家菲利浦电子有限公司 用于无线电通信设备的多频段天线装置
CN1868134A (zh) * 2003-10-17 2006-11-22 诺基亚有限公司 用于多频段多模式通信机的mimo和分集前端装置
CN1674452A (zh) * 2004-03-24 2005-09-28 乐金电子(中国)研究开发中心有限公司 一种移动通讯终端天线的匹配电路及方法
CN101212230A (zh) * 2006-12-26 2008-07-02 中兴通讯股份有限公司 一种手机dvb-h天线匹配网络的实现装置及其方法
CN101388486A (zh) * 2008-10-31 2009-03-18 清华大学 用于数字电视广播移动终端的匹配网络可重构的内置天线

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Publication number Publication date
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