WO2013185666A1 - 一种多频终端射频前端电路及多频终端 - Google Patents

一种多频终端射频前端电路及多频终端 Download PDF

Info

Publication number
WO2013185666A1
WO2013185666A1 PCT/CN2013/079157 CN2013079157W WO2013185666A1 WO 2013185666 A1 WO2013185666 A1 WO 2013185666A1 CN 2013079157 W CN2013079157 W CN 2013079157W WO 2013185666 A1 WO2013185666 A1 WO 2013185666A1
Authority
WO
WIPO (PCT)
Prior art keywords
radio frequency
frequency
radio
terminal
chip
Prior art date
Application number
PCT/CN2013/079157
Other languages
English (en)
French (fr)
Inventor
袁理刚
周正林
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
Priority to EP13804972.1A priority Critical patent/EP2860878B1/en
Priority to US14/413,101 priority patent/US9473196B2/en
Publication of WO2013185666A1 publication Critical patent/WO2013185666A1/zh

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
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/401—Circuits for selecting or indicating operating mode
    • 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
    • H04B1/005—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
    • H04B1/0053—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band
    • H04B1/006—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band using switches for selecting the desired band
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA

Definitions

  • the present invention relates to mobile communication technologies, and in particular to a multi-frequency terminal radio frequency front end circuit and a multi-frequency terminal.
  • the radio transceiver chip in the multi-frequency terminal of the related art generally has multiple transmission ports, each of which has a plurality of transmission ports, each of which has a plurality of transmission ports.
  • the port corresponds to one frequency band, and each frequency band corresponds to one RF amplifier and one filter, which will inevitably affect the miniaturization of the multimode multi-standby terminal.
  • the embodiment of the invention provides a multi-frequency terminal radio frequency front end circuit, which simplifies the transmission path of the multi-frequency terminal.
  • a multi-frequency terminal RF front-end circuit comprising a radio frequency transceiver chip, a radio frequency amplifier chip and a radio frequency switch:
  • radio frequency transceiver chip all frequency bands share one transmission port
  • the radio frequency amplifier chip includes a plurality of radio frequency amplifiers respectively corresponding to a plurality of frequency bands of the radio frequency transceiver chip transmitting signals, the plurality of radio frequency amplifiers being integrated and sharing one input port; the input port of the radio frequency amplifier chip Connecting a transmitting port of the radio frequency transceiver chip; the radio frequency switch is connected to an output end of the radio frequency amplifier chip, and is configured to switch signals of different frequency bands.
  • the multi-frequency terminal radio frequency front end circuit further includes a plurality of filters respectively corresponding to the plurality of frequency bands of the radio frequency transceiver chip transmitting signals, and the input ends of the plurality of filters are connected to the radio frequency switch Output.
  • the radio frequency switch is integrated with the radio frequency amplifier chip.
  • the radio frequency amplifier chip is integrated with the plurality of filters.
  • the radio frequency switch is integrated with the radio frequency amplifier chip and the plurality of filters.
  • the embodiment of the invention also discloses a multi-frequency terminal, which comprises the above-mentioned multi-frequency terminal radio frequency front end circuit.
  • a plurality of frequency bands share a single transmission port in the radio frequency transceiver chip, and the RF amplifier is integrated, thereby avoiding the problem that the transmission port is large and the path is complicated, and the internal space of the product is saved.
  • FIG. 1 is a schematic diagram of a radio frequency front end circuit of a multi-frequency terminal in the related art
  • FIG. 2 is a schematic diagram of a radio frequency front end circuit of a multi-frequency terminal according to an embodiment of the invention.
  • this embodiment discloses a multi-frequency terminal RF front-end circuit, including a radio frequency transceiver chip, a radio frequency amplifier chip, and an RF switch:
  • radio frequency transceiver chip all frequency bands share one transmission port
  • the radio frequency amplifier chip includes a plurality of radio frequency amplifiers respectively corresponding to a plurality of frequency bands of the radio frequency transceiver chip transmitting signals, the plurality of radio frequency amplifiers being integrated and sharing one input port; the input port of the radio frequency amplifier chip Connecting a transmitting port of the radio frequency transceiver chip; the radio frequency switch is connected to an output end of the radio frequency amplifier chip, and is used for switching signals of different frequency bands.
  • the multi-frequency terminal radio frequency front end circuit further includes a plurality of filters respectively corresponding to the plurality of frequency bands of the radio frequency transceiver chip transmitting signals, and the input ends of the plurality of filters are connected to the output end of the radio frequency switch.
  • the above circuit works as follows: When the RF transceiver chip transmits the RF signals of multiple frequency bands, one transceiver port is shared.
  • the RF switch switches the RF circuit to the path 1 under the control of the internal controller, that is, the signal passes through the RF amplifier. After amplification, the filter 1 filters out the clutter and then transmits it through the antenna.
  • the RF transceiver chip uses the frequency band 2 to transmit the signal, the RF switch switches the RF circuit to the path 2 under the control of the internal controller, that is, the signal passes through the RF. After amplification of the amplifier 2, the filter 2 filters out the clutter and then transmits it through the antenna, and so on.
  • the working principle is the same as the above-mentioned frequency bands 1 and 2.
  • a signal transmitting port is used, a plurality of RF amplifiers are integrated, and an RF switch is used, which not only reduces the influence of the switch insertion loss on the system performance, but also simplifies the design of the internal part of the terminal, thereby saving the internal space of the terminal.
  • the RF switch, the RF transceiver chip, and the filter can be integrated into one chip, thereby further saving the internal space of the terminal, reducing the volume of the terminal, and reducing the production cost.
  • a signal transmitting port is used, a plurality of RF amplifiers are integrated, and an RF switch is used, which not only reduces the influence of the switch insertion loss on the system performance, but also simplifies the design of the internal part of the terminal, thereby saving the internal space of the terminal.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transceivers (AREA)
  • Transmitters (AREA)

Abstract

本发明实施例公开了一种多频终端射频前端电路，包括射频收发芯片、射频放大器芯片和射频开关，射频收发芯片中，所有频段共用一个发射端口；射频放大器芯片包括多个与射频收发芯片发射信号的频段相对应的射频放大器，多个射频放大器集成于一体且共用一个输入端口；射频放大器芯片的输入端口连接所述射频收发芯片的发射端口；射频开关与射频放大器芯片的输出端相连接，用于不同频段信号的切换。

Description

一种多频终端射频前端电路及多频终端 技术领域
本发明涉及移动通信技术， 具体地， 涉及一种多频终端射频前端电路及 多频终端。
背景技术
如今， 移动终端已越来越成为人们的随身携带必备通讯工具了。 LTE/TD-SCDMA/WCDMA/GSM等多模终端中， 发射通路多、 发射所用功率 放大器多， 如图 1 , 相关技术的多频终端中的射频收发芯片一般设有多个发 射端口， 每个端口对应一种频段， 而且每一种频段对应一个射频放大器和一 个滤波器， 这些势必影响了多模多待终端的小型化。
发明内容
本发明实施例提出一种多频终端射频前端电路， 精简了多频终端的发射 通路。
一种多频终端射频前端电路， 包括射频收发芯片、 射频放大器芯片和射 频开关：
所述射频收发芯片中， 所有频段共用一个发射端口；
所述射频放大器芯片包括多个分别与所述射频收发芯片发射信号的多个 频段相对应的射频放大器， 所述多个射频放大器集成于一体且共用一个输入 端口； 所述射频放大器芯片的输入端口连接所述射频收发芯片的发射端口； 所述射频开关与射频放大器芯片的输出端相连接， 设置为切换不同频段 信号。
较佳地， 所述多频终端射频前端电路还包括多个分别与所述射频收发芯 片发射信号的多个频段相对应的滤波器， 所述多个滤波器的输入端连接所述 射频开关的输出端。
较佳地， 所述射频开关与所述射频放大器芯片集成一体。 较佳地， 所述射频放大器芯片与所述多个滤波器集成一体。
较佳地， 所述射频开关与所述射频放大器芯片以及所述多个滤波器集成 一体。
本发明实施例还公开了一种多频终端， 包括上述的多频终端射频前端电 路。
本发明实施例中， 射频收发芯片中多频段共用一个发射端口， 射频放大 器集成一体， 避免了发射端口多、 通路复杂的问题， 节省了产品的内部空间。 附图概述
图 1为相关技术中多频终端射频前端电路示意图；
图 2为根据本发明实施例中多频终端射频前端电路示意图。
本发明的较佳实施方式
以下结合附图对本发明的优先实施例进行说明。 需要说明的是， 在不冲 突的情况下， 本申请中的实施例及实施例中的特征可以相互任意组合。
如图 2所示， 本实施例公开了一种多频终端射频前端电路， 包括射频收 发芯片、 射频放大器芯片和射频开关：
所述射频收发芯片中， 所有频段共用一个发射端口；
所述射频放大器芯片包括多个分别与所述射频收发芯片发射信号的多个 频段相对应的射频放大器， 所述多个射频放大器集成于一体且共用一个输入 端口； 所述射频放大器芯片的输入端口连接所述射频收发芯片的发射端口； 所述射频开关与射频放大器芯片的输出端相连接， 用于不同频段信号的 切换。
多频终端射频前端电路还包括多个分别与所述射频收发芯片发射信号多 个频段相对应的滤波器， 所述多个滤波器的输入端连接所述射频开关的输出 端。
上述电路的工作原理如下： 射频收发芯片发射多个频段的射频信号时， 共用一个发射端口， 当射频 收发芯片使用频段 1发射信号时， 射频开关在内部控制器的控制下将射频电 路切换到通路 1 , 即信号经过射频放大器 1的放大后经过滤波器 1滤除杂波 后通过天线发射出去； 当射频收发芯片使用频段 2发射信号时， 射频开关在 内部控制器的控制下将射频电路切换到通路 2, 即信号经过射频放大器 2的 放大后经过滤波器 2滤除杂波后通过天线发射出去， 以此类推， 其他频段的 信号在发射时， 工作原理与上述频段 1和 2相同。
本发明实施例使用一个信号发射端口， 多个射频放大器集成一体， 并且 使用一个射频开关， 既降低了开关插损对系统性能的影响， 又简化了终端内 部的设计， 节省了终端内部空间。
在本发明实施例实施过程中， 还可以将射频开关、 射频收发芯片以及滤 波器集成到一个芯片中， 进一步地节省终端内部空间， 减小终端体积， 降低 生产成本。
本文所述仅为本发明的优选实施例而已， 并不用于限制本发明， 对于本 领域的技术人员来说， 本发明实施例可以有各种更改和变化。 因此， 凡在本 发明实施例的精神和原则之内所作的任何修改、 等同替换、 改进以及更新等 等， 均应包含在本发明的保护范围之内。
工业实用性
本发明实施例使用一个信号发射端口， 多个射频放大器集成一体， 并且 使用一个射频开关， 既降低了开关插损对系统性能的影响， 又简化了终端内 部的设计， 节省了终端内部空间。

Claims

权 利 要 求 书
1、 一种多频终端射频前端电路， 包括射频收发芯片、 射频放大器芯片和 射频开关， 其中：
所述射频收发芯片中， 所有频段共用一个发射端口；
所述射频放大器芯片包括多个分别与所述射频收发芯片发射信号的多个 频段相对应的射频放大器， 所述多个射频放大器集成于一体且共用一个输入 端口； 所述射频放大器芯片的输入端口连接所述射频收发芯片的发射端口； 所述射频开关与射频放大器芯片的输出端相连接， 设置为切换不同频段 信号。
2、 如权利要求 1所述的多频终端射频前端电路， 其中： 所述多频终端射 频前端电路还包括多个分别与所述射频收发芯片发射信号的多个频段相对应 的滤波器， 所述多个滤波器的输入端连接所述射频开关的输出端。
3、 如权利要求 1或 2所述的多频终端射频前端电路， 其中： 所述射频开 关与所述射频放大器芯片集成一体。
4、 如权利要求 2所述的多频终端射频前端电路， 其中： 所述射频放大器 芯片与所述多个滤波器集成一体。
5、 如权利要求 2所述的多频终端射频前端电路， 其中： 所述射频开关与 所述射频放大器芯片以及所述多个滤波器集成一体。
6、 一种多频终端， 包括根据权利要求 1-5任一项所述的多频终端射频前 端电路。
PCT/CN2013/079157 2012-07-11 2013-07-10 一种多频终端射频前端电路及多频终端 WO2013185666A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP13804972.1A EP2860878B1 (en) 2012-07-11 2013-07-10 Radio-frequency front-end circuit of multiband terminal and multiband terminal
US14/413,101 US9473196B2 (en) 2012-07-11 2013-07-10 Radio-frequency front-end circuit of multiband terminal and multiband terminal

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201220334721.2 2012-07-11
CN2012203347212U CN202759442U (zh) 2012-07-11 2012-07-11 一种多频终端射频前端电路及多频终端

Publications (1)

Publication Number Publication Date
WO2013185666A1 true WO2013185666A1 (zh) 2013-12-19

Family

ID=47738601

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2013/079157 WO2013185666A1 (zh) 2012-07-11 2013-07-10 一种多频终端射频前端电路及多频终端

Country Status (4)

Country Link
US (1) US9473196B2 (zh)
EP (1) EP2860878B1 (zh)
CN (1) CN202759442U (zh)
WO (1) WO2013185666A1 (zh)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202759442U (zh) 2012-07-11 2013-02-27 中兴通讯股份有限公司 一种多频终端射频前端电路及多频终端
CN105577221A (zh) * 2015-10-21 2016-05-11 东莞酷派软件技术有限公司 射频装置及通信终端
CN106803760B (zh) * 2015-11-26 2020-01-10 东莞酷派软件技术有限公司 射频装置及通信终端
CN108347251B (zh) * 2017-01-25 2019-11-05 展讯通信（上海）有限公司 射频前端电路
CN108075795B (zh) * 2017-12-26 2023-11-28 深圳市强军科技有限公司 多频接收机射频前端装置
CN108627836B (zh) * 2018-01-30 2020-06-26 江苏大学 一种双频段探测停车位雷达射频前端装置
CN117371391B (zh) * 2023-12-05 2024-04-12 成都恪赛科技有限公司 一种小型化毫米波变频组件

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1917685A (zh) * 2005-08-17 2007-02-21 三星电子株式会社 多模式/多频带无线收发器
CN101800566A (zh) * 2010-01-06 2010-08-11 华为终端有限公司 一种射频前端系统
CN202103661U (zh) * 2011-07-15 2012-01-04 惠州市正源微电子有限公司 多模多频手机射频前端模块
CN202759442U (zh) * 2012-07-11 2013-02-27 中兴通讯股份有限公司 一种多频终端射频前端电路及多频终端

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1237222B1 (en) * 2001-02-27 2006-01-18 Telefonaktiebolaget LM Ericsson (publ) Multiband transformation stage for a multiband r.f. switching device
US7155178B2 (en) * 2004-01-29 2006-12-26 Mediatek Inc. Circuit system for wireless communications
US7519390B2 (en) * 2004-03-10 2009-04-14 Spreadtrum Communications Inc. Transmitter and receiver architecture for multi-mode wireless device
DE102007004911A1 (de) 2007-01-26 2008-08-07 Funkwerk Dabendorf Gmbh Mehrteilige Schaltungsanordnung zur Dämpfungskompensation
US20090180403A1 (en) * 2008-01-11 2009-07-16 Bogdan Tudosoiu Multi-band and multi-mode radio frequency front-end module architecture
CN101814927B (zh) 2010-04-14 2014-07-02 中兴通讯股份有限公司 一种多模全频段的射频发射装置及方法
CN102104392B (zh) * 2010-12-15 2013-10-09 华为技术有限公司 多频段多路收发设备及方法、基站系统
KR101526235B1 (ko) * 2011-03-04 2015-06-05 가부시키가이샤 무라타 세이사쿠쇼 고주파 스위치 모듈
JP5360163B2 (ja) * 2011-08-22 2013-12-04 株式会社村田製作所 高周波フロントエンドモジュール

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1917685A (zh) * 2005-08-17 2007-02-21 三星电子株式会社 多模式/多频带无线收发器
CN101800566A (zh) * 2010-01-06 2010-08-11 华为终端有限公司 一种射频前端系统
CN202103661U (zh) * 2011-07-15 2012-01-04 惠州市正源微电子有限公司 多模多频手机射频前端模块
CN202759442U (zh) * 2012-07-11 2013-02-27 中兴通讯股份有限公司 一种多频终端射频前端电路及多频终端

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2860878A4 *

Also Published As

Publication number Publication date
EP2860878A1 (en) 2015-04-15
US9473196B2 (en) 2016-10-18
EP2860878B1 (en) 2019-11-27
EP2860878A4 (en) 2015-07-01
CN202759442U (zh) 2013-02-27
US20150180531A1 (en) 2015-06-25

Similar Documents

Publication Publication Date Title
WO2013185666A1 (zh) 一种多频终端射频前端电路及多频终端
WO2021143877A1 (zh) 射频电路和电子设备
US9287918B2 (en) High-frequency front-end circuit
CN101667810B (zh) 双频射频功率放大器电路芯片
KR101161579B1 (ko) 송수신용 다이플렉서를 이용한 ｒｆ 프런트 엔드 모듈 및 이를 적용한 무선통신장치
US20120171968A1 (en) Dual mode transceiver
JP2017529767A (ja) キャリアアグリゲーション装置
US20180123621A1 (en) Multi-mode multi-band transceiver, radio frequency front-end circuit and radio frequency system using the same
CN101714852A (zh) 双频射频功率放大器电路芯片
KR20130074585A (ko) 고주파 수동 소자를 이용한 ｒｆ 송수신기의 전치단 장치
WO2018205564A1 (zh) 一种射频前端模块及射频信号处理方法
WO2019059085A1 (ja) フィルタ回路および高周波モジュール
WO2013063926A1 (zh) 功率放大模块、多模射频收发器和多模终端
WO2023016171A1 (zh) 发射模组、射频系统及通信设备
CN105375936A (zh) 移动通信终端共用天线电路
US20130163577A1 (en) Power amplifying circuit and wireless communication device
CN105305985A (zh) 一种射频放大装置
CN102969989A (zh) 一种射频功率放大器的功率合成装置
WO2012079309A1 (zh) 四频段gsm收发装置及无线终端
KR102185066B1 (ko) 프론트 엔드 모듈
CN103716062A (zh) 一种集成低噪放大器、功率放大器和天线开关的射频电路
CN216490480U (zh) 射频前端器件和射频系统
CN112929039B (zh) 一种高频模块及通信装置
WO2012079308A1 (zh) 四频段gsm收发装置及无线终端
KR20140080309A (ko) 전력 증폭 회로 및 그를 포함하는 프론트 엔드 모듈

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 13804972

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 14413101

Country of ref document: US

NENP Non-entry into the national phase

Ref country code: DE