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WO2017000437A1 - Circuit intégré d'amplification - Google Patents

Circuit intégré d'amplification Download PDF

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Publication number
WO2017000437A1
WO2017000437A1 PCT/CN2015/092443 CN2015092443W WO2017000437A1 WO 2017000437 A1 WO2017000437 A1 WO 2017000437A1 CN 2015092443 W CN2015092443 W CN 2015092443W WO 2017000437 A1 WO2017000437 A1 WO 2017000437A1
Authority
WO
WIPO (PCT)
Prior art keywords
switch
integrated circuit
input
low noise
link
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/CN2015/092443
Other languages
English (en)
Chinese (zh)
Inventor
赵丽娟
穆学禄
田珅
沈楠
周虹
许盛全
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.)
ZTE Corp
Original Assignee
ZTE Corp
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 ZTE Corp filed Critical ZTE Corp
Publication of WO2017000437A1 publication Critical patent/WO2017000437A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • 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

Definitions

  • This application relates to, but is not limited to, the field of communication technology.
  • guard bands Traditional communication system frequency resource allocation preserves many guard bands, which can be used to support different communication systems.
  • communication technology and component technology it is possible to use the guard band to develop a new wireless communication system to make full use of frequency resources.
  • these adjacent protection band wireless communication systems may encounter interference problems caused by coexistence co-location between systems, and the related art uses an ordinary filter (for example, a cavity filter) to remove the communication link of the wireless communication system. Interference, because the common filter is difficult to achieve high isolation between systems, the system's anti-interference ability is poor.
  • This paper provides an amplifying integrated circuit designed to solve the technical problem of poor anti-interference ability of a communication system.
  • An amplifying integrated circuit comprising: a tuning unit connected in sequence, a first switch, a second switch, and a low noise amplifier, wherein an input end of the tuning unit is configured to be connected to a transmitting link, the first A first port is further connected between the switch and the second switch, a first input of the low noise amplifier is connected to the second switch, and a second input of the low noise amplifier is arranged to be connected to the receiving link.
  • the tuning unit includes a power splitter, a one-way or multiple equalization branch and a combiner, and an input end of the power splitter is configured to be connected to the transmit link, and the output of the splitter Connecting the one or more equalization branches between the end and the input end of the combiner, the output end of the combiner The first switch is connected.
  • the equalization branch includes a phase shifter and an attenuator connected in sequence, an input end of the phase shifter is connected to an output end of the power splitter, and an output end of the attenuator is connected to the combined circuit The input of the device.
  • the phase shifter is an adjustable phase shifter
  • the attenuator is an adjustable attenuator
  • the amplifying integrated circuit further includes a coupler, a first output end of the first switch is connected to a first input end of the coupler, and a second output end of the first switch is further connected to a second end a port, a second input of the coupler is disposed to be coupled to the receive link, a first output of the coupler is the first port, and a second output of the coupler is coupled to the low noise amplifier The second input.
  • the first switch is a three-state switch.
  • the transmitting signal of the transmitting link is input to the tuning unit, and the tuning unit can tune the amplitude and phase of the transmitted signal in the transmitting link to eliminate the internal interference of the transmitting signal of the transmitting link, and then The transmit signal is input to the low noise amplifier, and the receive link inputs the received signal to the low noise amplifier.
  • the tuning unit can tune the amplitude and phase of the transmitted signal in the transmitting link to eliminate the internal interference of the transmitting signal of the transmitting link, and then The transmit signal is input to the low noise amplifier, and the receive link inputs the received signal to the low noise amplifier.
  • FIG. 1 is a circuit diagram of a first embodiment of an amplifier integrated circuit of the present invention
  • FIG. 2 is a circuit diagram of an embodiment of the tuning unit of Figure 1;
  • FIG. 3 is a circuit diagram of the tuning unit of FIG. 2;
  • FIG. 4 is a circuit diagram of a second embodiment of an amplifier integrated circuit of the present invention.
  • FIG. 5 is a circuit diagram of an embodiment of an amplifier integrated circuit applied to a time division duplex communication system according to the present invention
  • FIG. 6 is a circuit diagram of an embodiment of an amplifier integrated circuit applied to a frequency division duplex communication system according to the present invention.
  • the amplifying integrated circuit includes: a tuning unit 11, a first switch 12, a second switch 13, and a low noise amplifier 14 connected in sequence, and is tuned.
  • the input end of the unit 11 is connected to the transmitting link, the first switch 12 and the second switch 13 are further connected with a first port, and the first input end of the low noise amplifier 14 is connected to the second switch 13, the first of the low noise amplifier 14 The two inputs are connected to the receive link.
  • the amplifying integrated circuit can be integrated into a chip, and can be applied to a communication link of a communication system such as a receiving system of a wireless base station, a radar receiving system, and a satellite communication receiving system.
  • a communication system such as a receiving system of a wireless base station, a radar receiving system, and a satellite communication receiving system.
  • the input of the tuning unit 11 is connected to a transmission link of the communication system, for example after being connected to a power amplifier of the transmission link, the tuning unit 11 is connected via a control bus to a baseband control unit in the communication system.
  • Tuning unit 11 can tune the amplitude and phase of the transmitted signal in the transmit link, eliminating internal interference of the transmit signal of the transmit link.
  • a matching load can be connected to the first port.
  • the tuning unit includes a power splitter 111, a one-way or multiple equalization branch 112, and a combiner 113.
  • the input of the power splitter 111 is connected to a transmit link, and the splitter
  • One or more equalization branches 112 are connected between the output of the 111 and the input of the combiner 113, and the output of the combiner 113 is connected to the first switch 12.
  • the power splitter 111 divides the transmit signal into one or more equalization branches 112.
  • the number of equalization branches is selected according to the scenario of the application. When the application scenario is a narrowband communication system, the number of equalization branches 112 is selected to be one way. When the application scenario is a broadband communication system, the equalization branch is selected. The number of 112 can It is 3, 4 and above.
  • the tuned signal passes through the combiner 113 and is connected to the switch A port.
  • the equalization branch 112 includes a phase shifter 1121 and an attenuator 1122 that are sequentially connected.
  • the input end of the phase shifter 1121 is connected to the output of the splitter 111, and the output of the attenuator 1122. The end is connected to the input of the combiner 113.
  • the phase shifter 1121 is an adjustable phase shifter
  • the attenuator 1122 is an adjustable attenuator.
  • the phase of the signal is tuned by the adjustable phase shifter, and the amplitude of the signal is tuned by the adjustable attenuator.
  • the amplification integrated circuit further includes a coupler 15, a first output end of the first switch 12 is connected to the first input end of the coupler 15, and a second output end of the first switch 12 is further Connected to the second port, the second input of the coupler 15 is connected to the receiving link, the first output of the coupler 15 is the first port, and the second output of the coupler 15 is connected to the low noise amplifier 14 The second input.
  • the second switch 13 is a normal switch, that is, the signal of the tuning unit 11 can be directly transmitted to the low noise amplifier 14 after being turned on.
  • the first switch 12 is a three-state switch, and the three states include: 1. The three ports A, B, and C are not turned on; 2. Only the A and C ports are turned on; 3. Only the B and C ports are turned on.
  • the amplifying integrated circuit can implement two functions, which are mainly determined by the connection manner of the first switch 12: when the A and C ports of the first switch 12 are connected, the second port is in a floating state, and The first port is connected to a matching load (such as a 50 ohm matched load).
  • the transmit signal of the transmit link is tuned by the tuner unit 11 and, after passing through the first switch 12 and the second switch 13, is output via the low noise amplifier 14 together with the received signal of the receive link, such an amplifier integrated circuit of the present embodiment.
  • the connection mode realizes the introduction of the transceiver function for the low noise amplifier;
  • the second port is connected to the matching load (such as a 50 ohm matching load).
  • the first port is the detection port, and the second input of the coupler 15 is input and received.
  • the signal after being coupled by the coupler 15, can extract the coupling signal at the first output of the coupler 15.
  • the analysis is performed, and the connection mode of the amplifying integrated circuit of the embodiment realizes the coupling detection function for the low noise amplifier.
  • the amplifying integrated circuit of this embodiment has a function of transmitting and receiving cancellation and a coupling detection function. In practical applications, one of them can be selected according to requirements.
  • the baseband control unit 21, the digital-to-analog converter 22, the adjustable gain amplifier 23, the mixer 24, and the adjustable gain amplifier 25 are included.
  • the low noise integrated chip 31 is the above-mentioned amplification integrated circuit.
  • the input terminal of the power splitter 111 of the amplification integrated circuit is connected to the coupler 27 of the transmission link, and the second of the coupler 15 of the integrated circuit is amplified.
  • the input terminal is connected to the filter 29, and the output of the low noise amplifier 14 of the amplification integrated circuit is connected to the adjustable gain amplifier 25.
  • the tuning unit 11 of the amplification integrated circuit is connected to the baseband control unit 21 via the control bus.
  • the transmission process of the transmission link is: the baseband control unit 21 provides a baseband signal to a digital to analog converter module (DAC) 22, and the adjustable gain amplifier 23 to the mixer 24 to implement spectrum shifting, After passing through the adjustable gain amplifier 25 and the power amplifier 26, the power amplifier 26 amplifies the signal, and then sends the signal to the filter 29 via the coupler 27 and the circulator 28, which filters out unnecessary signals and propagates through the antenna 30. Go out.
  • the receiving link and the transmitting link share an antenna 30, a filter 29, a circulator 28, and a coupler 27.
  • the transmission process of the receiving link is: after the antenna 30 receives the signal, the signal passes through the filter 29 and the circulator 28 to reach the coupler 27, and the signal is coupled to the low noise integrated chip 31 through the coupler 27, and then the adjustable gain amplifier is passed.
  • the signal is amplified, and the spectrum of the amplified signal is shifted by the mixer 24, and then transmitted to the baseband control unit 21 via the adjustable gain amplifier 25 and the digital-to-analog converter module DAC22.
  • the low noise integrated chip 31 is controlled by the serial peripheral interface (SPI) of the baseband control unit 21 or the parallel bus.
  • SPI serial peripheral interface
  • the application of the amplification integrated circuit shown in FIG. 4 is applied to the communication system of FIG. 6, in the frequency division duplexing communication system of FIG. 6, and the time division described above.
  • the difference in the duplex communication system is that the receiving link and the transmitting link do not share the antenna 30 and the filter 29, but the receiving link has an independent filter 29 and an antenna 30.
  • the signal passes through After the antenna 30 and the filter 29 are transmitted to the second input of the coupler 15 of the low noise integrated chip 31.
  • the other devices and connection relationships are the same as in the time division duplex communication system, and the low noise amplifier integrated chip 31 is also controlled by the serial peripheral interface or the parallel bus of the baseband control unit 21.
  • the transmitting signal of the transmitting link is input to the tuning unit, and the tuning unit can tune the amplitude and phase of the transmitted signal in the transmitting link to eliminate the internal interference of the transmitting signal of the transmitting link, and then The transmit signal is input to the low noise amplifier, and the receive link inputs the received signal to the low noise amplifier.
  • the tuning unit can tune the amplitude and phase of the transmitted signal in the transmitting link to eliminate the internal interference of the transmitting signal of the transmitting link, and then The transmit signal is input to the low noise amplifier, and the receive link inputs the received signal to the low noise amplifier.

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

Abstract

L'invention concerne un circuit intégré d'amplification. Le circuit intégré d'amplification comprend une unité de syntonisation, un premier commutateur, un second commutateur, et un amplificateur à faible bruit, qui sont connectés en séquence. Une extrémité d'entrée de l'unité de syntonisation est configurée pour être connecté à une liaison d'émission. Un premier port est en outre connecté entre le premier commutateur et le second commutateur. Une première extrémité d'entrée de l'amplificateur à faible bruit est connectée au second commutateur. Une seconde extrémité d'entrée de l'amplificateur à faible bruit est configurée pour être connectée à une liaison de réception.
PCT/CN2015/092443 2015-06-30 2015-10-21 Circuit intégré d'amplification Ceased WO2017000437A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201510374498.2A CN106330241B (zh) 2015-06-30 2015-06-30 放大集成电路
CN201510374498.2 2015-06-30

Publications (1)

Publication Number Publication Date
WO2017000437A1 true WO2017000437A1 (fr) 2017-01-05

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PCT/CN2015/092443 Ceased WO2017000437A1 (fr) 2015-06-30 2015-10-21 Circuit intégré d'amplification

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CN (1) CN106330241B (fr)
WO (1) WO2017000437A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023020134A1 (fr) * 2021-08-17 2023-02-23 中兴通讯股份有限公司 Système duplex à répartition dans le temps, puce et amplificateur de signaux
TWI831506B (zh) * 2022-12-07 2024-02-01 四零四科技股份有限公司 可調式射頻濾波器

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108023608B (zh) 2017-12-04 2020-03-06 中兴通讯股份有限公司 全时双工系统、电路、终端、控制方法及可读介质
CN109743089A (zh) * 2018-12-07 2019-05-10 东南大学 带辅助相移器组的毫米波多精度模拟码本产生装置及方法
CN117459957A (zh) * 2022-07-18 2024-01-26 中兴通讯股份有限公司 基站下行干扰检测方法、电路、控制单元及存储介质

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CN101567667A (zh) * 2009-04-24 2009-10-28 福建三元达通讯股份有限公司 增强型模拟预失真线性化功率放大器
CN101916918A (zh) * 2010-07-01 2010-12-15 中国电子科技集团公司第五十四研究所 一种自动极化调整天线系统及其极化校准方法
CN102137518A (zh) * 2010-01-25 2011-07-27 上海华为技术有限公司 Doherty功放和多频段信号参数调整装置

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US7486939B2 (en) * 2005-06-21 2009-02-03 Motorola, Inc. Apparatus for removing distortions created by an amplifier
KR100922947B1 (ko) * 2006-03-30 2009-10-23 삼성전자주식회사 무선통신 시스템의 수신기에서 이득 제어 방법 및 장치
CN102143100B (zh) * 2011-01-04 2014-01-15 意法·爱立信半导体（北京）有限公司 多频段天线自动调谐阻抗匹配的方法及终端设备
US9002309B2 (en) * 2011-05-27 2015-04-07 Qualcomm Incorporated Tunable multi-band receiver
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CN101567667A (zh) * 2009-04-24 2009-10-28 福建三元达通讯股份有限公司 增强型模拟预失真线性化功率放大器
CN102137518A (zh) * 2010-01-25 2011-07-27 上海华为技术有限公司 Doherty功放和多频段信号参数调整装置
CN101916918A (zh) * 2010-07-01 2010-12-15 中国电子科技集团公司第五十四研究所 一种自动极化调整天线系统及其极化校准方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023020134A1 (fr) * 2021-08-17 2023-02-23 中兴通讯股份有限公司 Système duplex à répartition dans le temps, puce et amplificateur de signaux
TWI831506B (zh) * 2022-12-07 2024-02-01 四零四科技股份有限公司 可調式射頻濾波器

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CN106330241A (zh) 2017-01-11
CN106330241B (zh) 2019-09-13

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