[go: up one dir, main page]

WO2017000437A1 - Amplification integrated circuit - Google Patents

Amplification integrated circuit Download PDF

Info

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
French (fr)
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/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

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

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.

Landscapes

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

Abstract

Disclosed is an amplification integrated circuit. The amplification integrated circuit comprises: a tuning unit, a first switch, a second switch and a low noise amplifier which are connected in sequence, wherein an input end of the tuning unit is configured to be connected to a transmitting link, a first port is further connected between the first switch and the second switch, a first input end of the low noise amplifier is connected to the second switch, and a second input end of the low noise amplifier is configured to be connected to a receiving link.

Description

放大集成电路Amplifying integrated circuit 技术领域Technical field

本申请涉及但不限于通信技术领域。This application relates to, but is not limited to, the field of communication technology.

背景技术Background technique

传统的通信系统频率资源划分保留了很多保护频段，这些保护频段可以用来支持不同的通信系统。随着通信技术以及元器件技术的发展，可以利用保护频段来开发新的无线通信系统，以充分利用频率资源。但是这些相邻的保护频段的无线通信系统，会遇到系统间共存共址带来的干扰问题，相关技术在无线通信系统的通信链路中采用普通滤波器(例如腔体滤波器)来去除干扰，由于普通滤波器很难达到系统间高隔离度的要求，因此系统的抗干扰能力较差。Traditional communication system frequency resource allocation preserves many guard bands, which can be used to support different communication systems. With the development of 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. However, 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.

上述内容仅用于辅助理解本文的技术方案，并不代表承认上述内容是现有技术。The above content is only used to assist in understanding the technical solutions herein, and does not constitute an admission that the above is prior art.

发明内容Summary of the invention

以下是对本文详细描述的主题的概述。本概述并非是为了限制权利要求的保护范围。The following is an overview of the topics detailed in this document. This Summary is not intended to limit the scope of the claims.

本文提供一种放大集成电路，旨在解决通信系统的抗干扰能力差的技术问题。This paper provides an amplifying integrated circuit designed to solve the technical problem of poor anti-interference ability of a communication system.

一种放大集成电路，所述放大集成电路包括：依次连接的调谐单元、第一开关、第二开关及低噪声放大器，所述调谐单元的输入端设置为与发射链路连接，所述第一开关与第二开关之间还连接有第一端口，所述低噪声放大器的第一输入端连接所述第二开关，所述低噪声放大器的第二输入端设置为与接收链路连接。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.

可选地，所述调谐单元包括功分器、一路或多路均衡支路及合路器，所述功分器的输入端设置为与所述发射链路连接，所述功分器的输出端与所述合路器的输入端之间连接所述一路或多路均衡支路，所述合路器的输出端连 接所述第一开关。Optionally, 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.

可选地，所述均衡支路包括依次连接的移相器及衰减器，所述移相器的输入端连接所述功分器的输出端，所述衰减器的输出端连接所述合路器的输入端。Optionally, 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.

可选地，所述移相器为可调移相器，所述衰减器为可调衰减器。Optionally, the phase shifter is an adjustable phase shifter, and the attenuator is an adjustable attenuator.

可选地，所述放大集成电路还包括耦合器，所述第一开关的第一输出端连接所述耦合器的第一输入端，所述第一开关的第二输出端还连接有第二端口，所述耦合器的第二输入端设置为与接收链路连接，所述耦合器的第一输出端为所述第一端口，所述耦合器的第二输出端连接所述低噪声放大器的第二输入端。Optionally, 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.

可选地，所述第一开关为三状态开关。Optionally, the first switch is a three-state switch.

本发明实施例的放大集成电路，发射链路的发射信号输入至调谐单元，调谐单元可对发射链路中的发射信号的幅度及相位进行调谐，消除发射链路的发射信号的内部干扰，然后该发射信号输入至低噪声放大器中，同时接收链路将接收信号输入至低噪声放大器中，这样，由于已经去除了发射信号的内部干扰，因此能够消除发射信号对接收信号的干扰，实现通信链路的收发对消功能。In the amplifying integrated circuit of the embodiment of the invention, 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. Thus, since the internal interference of the transmitted signal has been removed, the interference of the transmitted signal to the received signal can be eliminated, and the communication chain can be realized. The transmission and reception cancellation function of the road.

在阅读并理解了附图和详细描述后，可以明白其他方面。Other aspects will be apparent upon reading and understanding the drawings and detailed description.

附图概述BRIEF abstract

图1为本发明放大集成电路的第一实施例的电路图；1 is a circuit diagram of a first embodiment of an amplifier integrated circuit of the present invention;

图2为图1中调谐单元一实施例的电路图；Figure 2 is a circuit diagram of an embodiment of the tuning unit of Figure 1;

图3为图2中调谐单元细化电路图；3 is a circuit diagram of the tuning unit of FIG. 2;

图4为本发明放大集成电路的第二实施例的电路图；4 is a circuit diagram of a second embodiment of an amplifier integrated circuit of the present invention;

图5为本发明放大集成电路应用于时分双工通信系统一实施例的电路图；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;

图6为本发明放大集成电路应用于频分双工通信系统一实施例的电路 图。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; Figure.

本发明的实施方式Embodiments of the invention

本发明实施例提供一种放大集成电路，参照图1，在一实施例中，该放大集成电路包括：依次连接的调谐单元11、第一开关12、第二开关13及低噪声放大器14，调谐单元11的输入端连接至发射链路，第一开关12与第二开关13之间还连接有第一端口，低噪声放大器14的第一输入端连接第二开关13，低噪声放大器14的第二输入端连接至接收链路。An embodiment of the present invention provides an amplifying integrated circuit. Referring to FIG. 1, in an embodiment, 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.

本实施例中，放大集成电路可集成一芯片，可应用于无线基站的接受系统、雷达接受系统以及卫星通信接受系统等通信系统的通信链路中。In this embodiment, 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.

本实施例中，调谐单元11的输入端连接至通信系统的发射链路，例如连接至发射链路的功率放大器之后，调谐单元11经控制总线连接至通信系统中的基带控制单元。调谐单元11可对发射链路中的发射信号的幅度及相位进行调谐，消除发射链路的发射信号的内部干扰。在实际的应用中，可以在第一端口上接匹配负载，当第一开关12及第二开关13接通后，发射链路的发射信号输入至低噪声放大器14中，同时接收链路将接收信号输入至低噪声放大器14中，这样，由于已经去除了发射信号的内部干扰，因此能够消除发射信号对接收信号的干扰，实现通信链路的收发对消功能。In this embodiment, 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. In a practical application, a matching load can be connected to the first port. When the first switch 12 and the second switch 13 are turned on, the transmit signal of the transmit link is input to the low noise amplifier 14, and the receive link is received. The signal is input to the low noise amplifier 14, so that since the internal interference of the transmitted signal has been removed, the interference of the transmitted signal to the received signal can be eliminated, and the transmission and reception cancellation function of the communication link can be realized.

在一实施例中，如图2所示，调谐单元包括功分器111、一路或多路均衡支路112及合路器113，功分器111的输入端连接至发射链路，功分器111的输出端与合路器113的输入端之间连接一路或多路均衡支路112，合路器113的输出端连接第一开关12。In an embodiment, as shown in FIG. 2, 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.

本实施例中，功分器111将发射信号分为一路或多路的均衡支路112，均衡支路112的数量越多，则该放大集成电路的功能越强，每一均衡支路112能够实现对信号的幅度及相位的调谐。在实际应用中，根据应用的场景选择均衡支路的数量，当应用场景是窄带通信系统时，均衡支路112的数量选择为1路即可，当应用场景为宽带通信系统时，均衡支路112的数量可以 是3路、4路以及以上。In this embodiment, the power splitter 111 divides the transmit signal into one or more equalization branches 112. The greater the number of equalization branches 112, the stronger the function of the amplifier integrated circuit, and each equalization branch 112 can Achieve tuning of the amplitude and phase of the signal. In an actual application, 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.

本实施例中，调谐后的信号经过合路器113后连接到开关A端口。In this embodiment, the tuned signal passes through the combiner 113 and is connected to the switch A port.

在一实施例中，如图3所示，均衡支路112包括依次连接的移相器1121及衰减器1122，移相器1121的输入端连接功分器111的输出端，衰减器1122的输出端连接所述合路器113的输入端。In an embodiment, as shown in FIG. 3, 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.

本实施例中，移相器1121为可调移相器，衰减器1122为可调衰减器。本实施例由可调移相器实现对信号的相位的调谐，由可调衰减器实现对信号的幅度的调谐。In this embodiment, the phase shifter 1121 is an adjustable phase shifter, and the attenuator 1122 is an adjustable attenuator. In this embodiment, the phase of the signal is tuned by the adjustable phase shifter, and the amplitude of the signal is tuned by the adjustable attenuator.

在一实施例中，如图4所示，放大集成电路还包括耦合器15，第一开关12的第一输出端连接耦合器15的第一输入端，第一开关12的第二输出端还连接有第二端口，耦合器15的第二输入端连接至接收链路，耦合器15的第一输出端为所述第一端口，耦合器15的第二输出端连接所述低噪声放大器14的第二输入端。In an embodiment, as shown in FIG. 4, 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.

本实施例中，第二开关13为普通的开关，即接通后调谐单元11的信号能够直接传输至低噪声放大器14。第一开关12为三状态开关，三种状态包括：1、A、B、C三端口均不接通；2、仅A、C端口接通；3、仅B、C端口接通。In this embodiment, 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.

本实施例中，放大集成电路能够实现两种功能，这主要由第一开关12的连接方式决定：当第一开关12的A、C端口相连接时，上述的第二端口处于悬空状态，而第一端口接匹配负载(如接50欧姆的匹配负载)。发射链路的发射信号经调谐单元11调谐，并经第一开关12及第二开关13后，与接收链路的接收信号一起经低噪声放大器14输出，本实施例的放大集成电路的这种连接方式实现的是对低噪放引入收发对消功能；In this embodiment, 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;

当第一开关12的B、C端口相连接时，第二端口接匹配负载(如接50欧姆的匹配负载)，这时，第一端口为检测端口，耦合器15的第二输入端输入接收信号，经耦合器15耦合后，可在耦合器15的第一输出端提取耦合信 号进行分析，本实施例的放大集成电路的这种连接方式实现的是对低噪放引入耦合检测功能。本实施例的放大集成电路具备收发对消功能及耦合检测功能，在实际应用中，可以根据需求选择其中之一。When the B and C ports of the first switch 12 are connected, the second port is connected to the matching load (such as a 50 ohm matching load). At this time, 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.

如图5所示，在时分双工(Time Division Duplexing，TDD)通信系统中，包括：基带控制单元21、数字模拟转换器22、可调增益放大器23、混频器24、可调增益放大器25、功率放大器26、耦合器27、环形器28、滤波器29、天线30、低噪放集成芯片31、振荡器(本振)32。其中，低噪放集成芯片31即为上述的放大集成电路。As shown in FIG. 5, in a Time Division Duplexing (TDD) communication system, 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 power amplifier 26, the coupler 27, the circulator 28, the filter 29, the antenna 30, the low noise amplifier integrated chip 31, and the oscillator (local oscillator) 32. The low noise integrated chip 31 is the above-mentioned amplification integrated circuit.

将上述图4所示的放大集成电路的应用至图5的通信系统中，放大集成电路的功分器111的输入端连接发射链路的耦合器27，放大集成电路的耦合器15的第二输入端连接滤波器29，放大集成电路的低噪声放大器14的输出端连接可调增益放大器25，放大集成电路的调谐单元11经控制总线连接基带控制单元21。Applying the above-described amplification integrated circuit shown in FIG. 4 to the communication system of FIG. 5, 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.

在时分双工通信系统中，发射链路的传输过程为：基带控制单元21提供基带信号到数字模拟转换器模块(DAC)22，经可调增益放大器23到混频器24，实现频谱搬移，再经过可调增益放大器25及功率放大器26，功率放大器26将信号放大，然后经耦合器27和环形器28将信号送至滤波器29，滤波器29滤除不必要的信号后通过天线30传播出去。接收链路和发射链路共用天线30、滤波器29、环形器28和耦合器27。接收链路的传输过程为：天线30接收信号后，信号经滤波器29、环形器28后到达耦合器27，通过耦合器27将信号耦合到低噪放集成芯片31，然后经可调增益放大器将信号放大，通过混频器24实现放大信号的频谱搬移，再经过可调增益放大器25、数字模拟转换器模块DAC22传输至基带控制单元21。此时低噪放集成芯片31是通过基带控制单元21的串行外设接口(Serial Peripheral Interface，SPI)或者并行总线进行控制。In a time division duplex communication system, 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. At this time, the low noise integrated chip 31 is controlled by the serial peripheral interface (SPI) of the baseband control unit 21 or the parallel bus.

如图6所示，将图4所示的放大集成电路的应用至图6的通信系统中，在图6的频分双工(Frequency Division Duplexing)通信系统中，与上述的时分 双工通信系统中所不同的是，接收链路和发射链路并不共用天线30及滤波器29，而是接收链路有独立的滤波器29及天线30，在接收链路中，信号经天线30及滤波器29后，传输到低噪放集成芯片31的耦合器15的第二输入端。其他的器件及连接关系与时分双工通信系统中的相同，且低噪放集成芯片31也是通过基带控制单元21的串行外设接口或者并行总线进行控制。As shown in FIG. 6, 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. In the receiving link, 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.

工业实用性Industrial applicability

本发明实施例的放大集成电路，发射链路的发射信号输入至调谐单元，调谐单元可对发射链路中的发射信号的幅度及相位进行调谐，消除发射链路的发射信号的内部干扰，然后该发射信号输入至低噪声放大器中，同时接收链路将接收信号输入至低噪声放大器中，这样，由于已经去除了发射信号的内部干扰，因此能够消除发射信号对接收信号的干扰，实现通信链路的收发对消功能。 In the amplifying integrated circuit of the embodiment of the invention, 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. Thus, since the internal interference of the transmitted signal has been removed, the interference of the transmitted signal to the received signal can be eliminated, and the communication chain can be realized. The transmission and reception cancellation function of the road.

Claims (6)

一种放大集成电路，所述放大集成电路包括：依次连接的调谐单元、第一开关、第二开关及低噪声放大器，所述调谐单元的输入端设置为与发射链路连接，所述第一开关与第二开关之间还连接有第一端口，所述低噪声放大器的第一输入端连接所述第二开关，所述低噪声放大器的第二输入端设置为与接收链路连接。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. 如权利要求1所述的放大集成电路，其中，所述调谐单元包括功分器、一路或多路均衡支路及合路器，所述功分器的输入端设置为与所述发射链路连接，所述功分器的输出端与所述合路器的输入端之间连接所述一路或多路均衡支路，所述合路器的输出端连接所述第一开关。The amplifying integrated circuit of claim 1 wherein said tuning unit comprises a power divider, one or more equalization branches, and a combiner, the input of said power splitter being arranged to communicate with said transmit link Connected, the output end of the power splitter and the input end of the combiner are connected to the one or more equalization branches, and the output end of the combiner is connected to the first switch. 如权利要求2所述的放大集成电路，其中，所述均衡支路包括依次连接的移相器及衰减器，所述移相器的输入端连接所述功分器的输出端，所述衰减器的输出端连接所述合路器的输入端。The amplifying integrated circuit according to claim 2, wherein said equalization branch comprises a phase shifter and an attenuator sequentially connected, an input end of said phase shifter being connected to an output end of said power splitter, said attenuation The output of the device is connected to the input of the combiner. 如权利要求3所述的放大集成电路，其中，所述移相器为可调移相器，所述衰减器为可调衰减器。The amplifying integrated circuit of claim 3 wherein said phase shifter is an adjustable phase shifter and said attenuator is an adjustable attenuator. 如权利要求1至4任一项所述的放大集成电路，所述放大集成电路还包括耦合器，所述第一开关的第一输出端连接所述耦合器的第一输入端，所述第一开关的第二输出端还连接有第二端口，所述耦合器的第二输入端设置为与接收链路连接，所述耦合器的第一输出端为所述第一端口，所述耦合器的第二输出端连接所述低噪声放大器的第二输入端。The amplifying integrated circuit according to any one of claims 1 to 4, further comprising a coupler, a first output end of the first switch being connected to a first input end of the coupler, the a second output of a switch is further coupled to a second port, a second input of the coupler is configured to be coupled to a receive link, a first output of the coupler is the first port, the coupling A second output of the device is coupled to the second input of the low noise amplifier. 如权利要求5所述的放大集成电路，其中，所述第一开关为三状态开关。 The amplifying integrated circuit of claim 5 wherein said first switch is a three state switch.
PCT/CN2015/092443 2015-06-30 2015-10-21 Amplification integrated circuit Ceased WO2017000437A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201510374498.2A CN106330241B (en) 2015-06-30 2015-06-30 Amplification circuit
CN201510374498.2 2015-06-30

Publications (1)

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

Family

ID=57607583

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2015/092443 Ceased WO2017000437A1 (en) 2015-06-30 2015-10-21 Amplification integrated circuit

Country Status (2)

Country Link
CN (1) CN106330241B (en)
WO (1) WO2017000437A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023020134A1 (en) * 2021-08-17 2023-02-23 中兴通讯股份有限公司 Time division duplex system, chip, and signal amplifier
TWI831506B (en) * 2022-12-07 2024-02-01 四零四科技股份有限公司 Radio frequency filter with adjustable channel

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108023608B (en) 2017-12-04 2020-03-06 中兴通讯股份有限公司 Full time duplex system, circuit, terminal, control method and readable medium
CN109743089A (en) * 2018-12-07 2019-05-10 东南大学 Millimeter wave multi-precision analog codebook generation device and method with auxiliary phase shifter group
CN117459957A (en) * 2022-07-18 2024-01-26 中兴通讯股份有限公司 Base station downlink interference detection method, circuit, control unit and storage medium

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101567667A (en) * 2009-04-24 2009-10-28 福建三元达通讯股份有限公司 Enhancement type analog predistortion linear power amplifier
CN101916918A (en) * 2010-07-01 2010-12-15 中国电子科技集团公司第五十四研究所 Automatic polarization adjustment antenna system and polarization calibration method thereof
CN102137518A (en) * 2010-01-25 2011-07-27 上海华为技术有限公司 Doherty power amplifier and multi-frequency band signal parameter adjusting device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7486939B2 (en) * 2005-06-21 2009-02-03 Motorola, Inc. Apparatus for removing distortions created by an amplifier
KR100922947B1 (en) * 2006-03-30 2009-10-23 삼성전자주식회사 Gain control method and apparatus in receiver of wireless communication system
CN102143100B (en) * 2011-01-04 2014-01-15 意法·爱立信半导体（北京）有限公司 Method and terminal equipment for automatically tuning impedance match of multiband aerial
US9002309B2 (en) * 2011-05-27 2015-04-07 Qualcomm Incorporated Tunable multi-band receiver
CN204205065U (en) * 2014-11-11 2015-03-11 协同通信技术有限公司 Electronic tuning automatic Polarization tracking system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101567667A (en) * 2009-04-24 2009-10-28 福建三元达通讯股份有限公司 Enhancement type analog predistortion linear power amplifier
CN102137518A (en) * 2010-01-25 2011-07-27 上海华为技术有限公司 Doherty power amplifier and multi-frequency band signal parameter adjusting device
CN101916918A (en) * 2010-07-01 2010-12-15 中国电子科技集团公司第五十四研究所 Automatic polarization adjustment antenna system and polarization calibration method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023020134A1 (en) * 2021-08-17 2023-02-23 中兴通讯股份有限公司 Time division duplex system, chip, and signal amplifier
TWI831506B (en) * 2022-12-07 2024-02-01 四零四科技股份有限公司 Radio frequency filter with adjustable channel

Also Published As

Publication number Publication date
CN106330241A (en) 2017-01-11
CN106330241B (en) 2019-09-13

Similar Documents

Publication Publication Date Title
US6567648B1 (en) System combining radio frequency transmitter and receiver using circulator and method for canceling transmission signal thereof
CN105099493B (en) Radio circuit and mobile terminal
CN102571655B (en) Method and device for implementing interference cancellation and filters
US9048805B2 (en) Tunable duplexer architecture
US9590794B2 (en) Enhancing isolation and impedance matching in hybrid-based cancellation networks and duplexers
US9413416B2 (en) Transmit and receive RF multiplexer
US7917170B2 (en) Multiple-band radio frequency (RF) circuit and method for a wireless communication device
JP2008271541A (en) Wireless transceiver settable by software with MEMS filter
WO2017000437A1 (en) Amplification integrated circuit
US10763787B2 (en) Circuits for wireless communication on multiple frequency bands
CN103546189B (en) Radio frequency front-end circuit and system
US12003270B2 (en) Passive intermodulation distortion filtering
JP5573720B2 (en) Wireless communication system
US9912326B2 (en) Method for tuning feed-forward canceller
WO2019128974A1 (en) Signal receiving circuit, signal processing chip, communication equipment and signal receiving method
US8036627B2 (en) Bidirectional frequency mixer, radiofrequency transceiver system including such a mixer
US20130258915A1 (en) Wireless device
US9780943B2 (en) Broadband distributed amplifier based active duplexer
US8918063B2 (en) System for transmitting/receiving multi-band radio frequency signal using dual input, dual output filter
CN111147119B (en) DAS combiner system
US20060234627A1 (en) Mobile radio combiner and multi-coupler unit
KR100777188B1 (en) RF receivers, RF transceivers, and multiple I / O RF transceivers with integrated balun
JPH10303777A (en) Mutual modulation distortion reduction circuit for radio equipment
US12328130B2 (en) Radio frequency module and communication device
JPH0294821A (en) Attenuating device for interference wave between transmitter and receiver in radio equipment

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: 15896965

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 15896965

Country of ref document: EP

Kind code of ref document: A1