WO2011023026A1 - 一种功放装置及用户设备的接收装置 - Google Patents

一种功放装置及用户设备的接收装置 Download PDF

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Publication number
WO2011023026A1
WO2011023026A1 PCT/CN2010/074298 CN2010074298W WO2011023026A1 WO 2011023026 A1 WO2011023026 A1 WO 2011023026A1 CN 2010074298 W CN2010074298 W CN 2010074298W WO 2011023026 A1 WO2011023026 A1 WO 2011023026A1
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WO
WIPO (PCT)
Prior art keywords
power amplifier
stage
amplifier tube
bias circuit
signal
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Application number
PCT/CN2010/074298
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English (en)
French (fr)
Inventor
汪海
Original Assignee
华为终端有限公司
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Filing date
Publication date
Application filed by 华为终端有限公司 filed Critical 华为终端有限公司
Priority to EP10811186A priority Critical patent/EP2475096A4/en
Publication of WO2011023026A1 publication Critical patent/WO2011023026A1/zh
Priority to US13/407,350 priority patent/US20120212295A1/en

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Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
    • H03F3/24—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers of transmitter output stages
    • H03F3/245—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers of transmitter output stages with semiconductor devices only
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
    • H03F1/0205—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers
    • H03F1/0261—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers with control of the polarisation voltage or current, e.g. gliding Class A
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/56—Modifications of input or output impedances, not otherwise provided for
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/189—High-frequency amplifiers, e.g. radio frequency amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
    • H03F3/22—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with tubes only
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/72—Gated amplifiers, i.e. amplifiers which are rendered operative or inoperative by means of a control signal
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/18—Indexing scheme relating to amplifiers the bias of the gate of a FET being controlled by a control signal
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/222—A circuit being added at the input of an amplifier to adapt the input impedance of the amplifier
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/27—A biasing circuit node being switched in an amplifier circuit
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/318—A matching circuit being used as coupling element between two amplifying stages
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/387—A circuit being added at the output of an amplifier to adapt the output impedance of the amplifier
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/411—Indexing scheme relating to amplifiers the output amplifying stage of an amplifier comprising two power stages
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/72—Indexing scheme relating to gated amplifiers, i.e. amplifiers which are rendered operative or inoperative by means of a control signal
    • H03F2203/7206—Indexing scheme relating to gated amplifiers, i.e. amplifiers which are rendered operative or inoperative by means of a control signal the gated amplifier being switched on or off by a switch in the bias circuit of the amplifier controlling a bias voltage in the amplifier
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/72—Indexing scheme relating to gated amplifiers, i.e. amplifiers which are rendered operative or inoperative by means of a control signal
    • H03F2203/7231—Indexing scheme relating to gated amplifiers, i.e. amplifiers which are rendered operative or inoperative by means of a control signal the gated amplifier being switched on or off by putting into cascade or not, by choosing between amplifiers by one or more switch(es)

Definitions

  • the present invention relates to the field of signal processing, and in particular, to a power amplifier device and a receiving device of a user equipment.
  • the power amplifier device is a key device, and the power amplifier device needs to ensure that the audio or video signal at this time satisfies the user's requirements, and at the same time, in order to reduce the work of the whole machine.
  • the power amplifier needs to have the highest power amplifier efficiency, that is, the gain amplification signal has the highest efficiency. As the output power of the power amplifier device decreases, the power amplifier efficiency of the power amplifier device also decreases monotonously.
  • the power amplifier device of the receiving device of the prior art user equipment provides a control signal for the power amplifier device through the signal voltage group, and each signal voltage in the signal voltage group has two states, and the two signal voltages are combined to provide four control states.
  • Three control modes in the first control mode, a high bias voltage is output to the power amplifier tube to ensure that the power amplifier tube operates at a high power operating point; in the second control mode, a low bias voltage is output to the power amplifier tube to Ensure that the power amplifier tube operates at a low power operating point; in the third control mode, the signal is amplified by the gain of the low power power amplifier tube in the power amplifier device.
  • the design of power amplifier devices in mobile terminal devices such as WCDMA/CDMA/TDMA networks is too complicated, resulting in a relatively low yield in the production of power amplifier devices.
  • the receiving device of the user equipment is applied by the whole machine, according to different output powers required, the signals are transmitted through different circuits in the power amplifier device, and different conversion circuits are required between different circuits inside the power amplifier device, and conversion of different circuits is required.
  • the process will affect the stability of the gain of the power amplifier device, resulting in deterioration of the technical specifications of the power amplifier device. Summary of the invention
  • Embodiments of the present invention provide a power amplifier device for solving the structure of a power amplifier device in the prior art. Complex, poor stability issues.
  • a power amplifier device wherein the power amplifier device includes:
  • the first stage power amplifier tube gain amplifies all input signals
  • a first stage bias circuit connected to the first stage power amplifier tube, providing a bias voltage to the first stage power amplifier tube;
  • a second stage power amplifier tube connected to the first stage power amplifier tube, gaining an output signal of the first stage power amplifier tube;
  • a second stage bias circuit connected to the second stage power amplifier tube, providing a bias voltage to the second stage power amplifier tube;
  • a reference voltage unit connected to the first stage bias circuit and the second stage bias circuit, and supplying a voltage to the first stage bias circuit and the second stage bias circuit;
  • control voltage unit connected to the first stage bias circuit and the second stage bias circuit, wherein the first stage power amplifier tube is controlled to be turned on and off by the first stage bias circuit, and
  • the second stage bias circuit controls the conduction and deactivation of the second stage power amplifier tube.
  • a receiving device for a user equipment comprising: a power amplifier device, a signal receiving device, and a signal transmitting device;
  • the signal receiving device is connected to the power amplifier device, receives an input signal and transmits the signal to the power amplifier device;
  • the signal transmitting device is connected to the power amplifier device and transmits an output signal of the power amplifier device;
  • the power amplifier device includes the following components:
  • the first stage power amplifier tube gain amplifies all input signals
  • a first stage bias circuit connected to the first stage power amplifier tube, providing a bias voltage to the first stage power amplifier tube;
  • a second-stage power amplifier tube connected to the first-stage power amplifier tube, and gain-amplifying an output signal of the first-stage power amplifier tube; a second stage bias circuit connected to the second stage power amplifier tube, providing a bias voltage to the second stage power amplifier tube;
  • a reference voltage unit connected to the first stage bias circuit and the second stage bias circuit, and supplying a voltage to the first stage bias circuit and the second stage bias circuit;
  • control voltage unit connected to the first stage bias circuit and the second stage bias circuit, wherein the first stage power amplifier tube is controlled to be turned on and off by the first stage bias circuit, and
  • the second stage bias circuit controls the conduction and deactivation of the second stage power amplifier tube.
  • the receiving device of the user equipment is applied to a mobile communication network including WCDMA, CDMA, and T-Wake.
  • FIG. 2 is a schematic structural diagram of a first embodiment of a power amplifier device according to an embodiment of the present invention
  • FIG. 3 is a schematic structural diagram of a second embodiment of a power amplifier device according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a specific embodiment of a receiving apparatus of a user equipment according to an embodiment of the present invention. detailed description
  • FIG. 2 is a schematic structural diagram of a first embodiment of a power amplifier device according to an embodiment of the present invention.
  • the power amplifier device of the embodiment of the present invention includes the following components: a reference voltage unit 401, a control voltage unit 402, a first-stage power amplifier tube 405, a second-stage power amplifier tube 406, a first-stage bias circuit 407, and a The second stage bias circuit 408, wherein the first stage power amplifier tube 405 is used for the gain amplification signal, and the first stage bias circuit 407 is connected to the first stage power amplifier tube 405 for supplying the bias voltage to the first stage power amplifier tube 405.
  • the second stage power amplifier tube 406 is connected to the first stage power amplifier tube 405 for gain amplification of the gain amplification signal of the first stage power amplifier tube 405, and the second stage bias circuit 408 is connected with the second stage power amplifier tube 406 for
  • the second stage power amplifier tube 406 provides a bias voltage
  • the reference voltage unit 401 is coupled to the first stage bias circuit 407 and the second stage bias circuit 408 for the first stage bias circuit 407 and the second stage bias circuit.
  • 408 provides a voltage
  • the control voltage unit 402 is coupled to the first stage bias circuit 407 and the second stage bias circuit 408 for controlling the turn-on and turn-off of the first stage power amplifier tube 405 through the first stage bias circuit 407.
  • the second-stage bias circuit 408 controls the second stage power amplifier 406 is turned on and off.
  • the power amplifier device of the embodiment of the present invention further includes an input matching device 409 and an output matching device 410.
  • the input matching device 409 is connected between the signal input terminal 403 and the first stage power amplifier tube 405 for matching the signal to the first stage power amplifier tube.
  • the signal power is efficiently input into the power amplifier device to efficiently amplify the signal.
  • the output matching device 410 is connected between the second stage power amplifier tube 406 and the signal output end 404 for matching the signal to the signal output end 404 to ensure that the power signal amplified by the power amplifier device can be outputted with high efficiency. Power loss, achieving high efficiency amplification of the signal.
  • the power amplifier device of the embodiment of the present invention further includes a first stage power amplifier tube 405 and a second level power amplifier.
  • the inter-stage matching device 411 of the tube 406 is configured to match the output signal amplified by the first-stage power amplifier tube 405 to the second-stage power amplifier tube 406, reducing the loss between the first-stage power amplifier tube 405 and the second-stage power amplifier tube 406. The resulting power loss is used to obtain a signal with high efficiency gain amplification.
  • the power amplifier device of the embodiment of the present invention described above has a simple structure and can improve the yield in the production process, which is advantageous for reducing the production cost.
  • FIG. 3 is a schematic structural diagram of a second embodiment of a power amplifier device according to an embodiment of the present invention.
  • the power amplifier device of the embodiment of the present invention is composed of the following components: a reference voltage unit 501, a control voltage unit 502, a power amplifier tube 505, and a bias circuit 508.
  • the power amplifier tube 505 is used to gain amplify the input signal
  • the bias circuit 508 is used to provide a bias voltage for the power amplifier tube 505
  • the reference voltage unit 501 is used to supply a voltage to the bias circuit 508, and the control voltage unit 502 is used to pass the bias voltage.
  • Circuitry 508 controls the turn-on and turn-off of the first stage power amplifier tube 505.
  • the power amplifier device of the embodiment of the present invention further includes an input matching device 506 and an output matching device 507 to avoid or reduce power loss during signal transmission and improve the efficiency of the power amplifier device.
  • the input matching device 506 is connected to the signal input terminal 503 and the power amplifier tube. Between 505, output matching device 507 is coupled between signal output 504 and power amplifier tube 505.
  • the structure of the power amplifier device of the embodiment of the invention is further simplified, which is very advantageous for reducing the production cost and improving the efficiency and the yield in the production process.
  • FIG. 4 is a schematic structural diagram of a specific embodiment of a receiving apparatus of a user equipment according to an embodiment of the present invention.
  • the receiving apparatus of the user equipment in the embodiment of the present invention includes: a signal receiving device 41, a signal transmitting device 42, and a power amplifier device 40, wherein the signal receiving device 41 is connected to the signal input terminal 403 on the power amplifier device 40, The signal transmitting device 42 is connected to the signal output terminal 404 of the power amplifier device 40 for transmitting the output signal amplified by the gain of the power amplifier device 40.
  • the power amplifier device 40 adopts the above FIG. 2 or FIG. 3
  • the power amplifier device shown is used for the gain amplification signal receiving device 41 to receive all input signals, and to transmit the amplified input signals. It is sent to the signal transmitting device 42 for transmission to the user.
  • the power amplifier device 40 of the receiving device of the user equipment adopts the technical solution of the power amplifier device according to the embodiment of the present invention.
  • the power amplifier device 40 includes the following components: a reference voltage unit 401, a control voltage unit 402, and a first-stage power amplifier.
  • the first stage bias circuit 407 is connected to the first stage power amplifier tube 405 for supplying a bias voltage to the first stage power amplifier tube 405
  • the second stage power amplifier tube 406 is connected to the first stage power amplifier tube 405.
  • the second stage bias circuit 408 is coupled to the second stage power amplifier tube 406 for providing a bias voltage to the second stage power amplifier tube 406, the reference voltage unit 401 and
  • the first stage bias circuit 407 is coupled to the second stage bias circuit 408 for supplying voltage to the first stage bias circuit 407 and the second stage bias circuit 408; the control voltage unit 402 is offset from the first stage
  • the circuit 407 is connected to the second stage bias circuit 408 for controlling the on and off of the first stage power amplifier tube 405 through the first stage bias circuit 407, and controlling the second stage power amplifier by the second stage bias circuit 408.
  • the switch 409 is connected between the signal input terminal 403 and the first stage power amplifier tube 405 for matching the signal to the first stage power amplifier tube 405 to ensure the signal power is efficiently Input into the power amplifier device to efficiently amplify the signal;
  • the output matching device 410 is connected between the second stage power amplifier tube 406 and the signal output terminal 404 for matching the signal to the signal output terminal 404 to ensure The amplified power signal of the power amplifier device can output efficiently, P competes for low power loss, and achieves high-efficiency amplification of the signal;
  • the inter-stage matching device 411 is connected between the first-stage power amplifier tube 405 and the second-stage power amplifier tube 406.
  • the output signal amplified by the first stage power amplifier tube 405 is matched to the second stage power amplifier tube 406, and the power loss caused by the mismatch between the first stage power amplifier tube 405 and the second stage power amplifier tube 406 is reduced to obtain high efficiency.
  • the rate gain amplified signal reference voltage unit 401 supplies voltages to the first stage bias circuit 407 and the second stage bias circuit 408, and the control voltage unit 402 controls the conduction of the first stage power amplifier tube 405 through the first stage bias circuit 407. And turning off, the second stage power amplifier tube 406 is controlled to be turned on and off by the second stage bias circuit 408.
  • the specific working process of the receiving apparatus of the user equipment in the embodiment of the present invention is:
  • the signal receiving device 41 receives a signal from the mobile communication network and transmits the signal to the signal input terminal 403 of the power amplifier device 40; the signal input terminal 403 transmits the signal to the input matching device 409, and the input matching device 409 outputs the signal input terminal 403.
  • the signal is matched to the first stage power amplifier tube 405, the first stage power amplifier tube 405 performs the first gain amplification, and the signal for completing the first gain amplification is transmitted to the inter-stage matching device 411, and the inter-stage matching device 411 is first.
  • the gain amplified signal output by the stage power amplifier tube 405 is matched to the second stage power amplifier tube 406, and the second stage power amplifier tube 406 performs the second gain amplification on the signal, and the signal for completing the second gain amplification is matched by the output matching device 410 to the power amplifier.
  • signal output 404 of device 40 signal output 404 transmits the two gain amplified signals to signal transmitting device 42, which signals the signals to the user to complete the process of signal reception, gain amplification, and transmission.
  • the receiving device of the user equipment in the embodiment of the present invention has a reference voltage on the power amplifier device as a fixed voltage to provide a stable bias voltage, which is beneficial to the first-stage power amplifier tube and the second-stage power amplifier tube.
  • the gain state is kept stable, and since the signal channel of the signal is unique when transmitting the power amplifier device, the signal channel conversion of the signal in the power amplifier device is avoided, thereby improving the stability of the gain state of the power amplifier device.
  • the maximum power output of the receiving device of the user equipment is 24 dBm.
  • the probability that the power of the output signal is OdBm is large, so the power amplifier device in the terminal is required. It is ensured that the receiving device of the user equipment has a relatively high power amplifier output when the output power of the whole device is OdBm, and the receiving device of the user equipment has a high probability of being a signal with output power of 10 dBm and 24 dBm in the actual network.
  • the inventor of the embodiment of the present invention finds that when designing a receiving device of a user equipment of a communication network such as WCDMA, the key is to ensure that the output power of the receiving device of the user equipment is 0 dBm, l OdBm.
  • the power amplifier efficiency of 24dBm3 working states that is: First, to ensure high power state, that is, the power output of the whole machine is 24dBm, the power amplifier has high power amplifier efficiency, and the second is to ensure the medium power state, that is, the output power of the whole machine is l OdBm. When there is a higher power amplifier efficiency, the third is to ensure a low power state, that is, the power output efficiency of the whole machine is OdBm.
  • the power amplifier device of the embodiment of the invention can ensure a higher power amplifier efficiency when the output power of the receiving device of the user equipment is OdBm, l OdBm and 24 dBm.
  • the receiving device of the user equipment can be applied not only to the mobile communication network of the WCDMA but also to other mobile communication networks such as CDMA and TDMA.
  • the receiving device of the user equipment reduces the receiving device of the user equipment. The production cost increases the yield of the product, and on the other hand, the output signal with high stability can be obtained.
  • the present invention can be implemented by means of software plus necessary general hardware, and of course, by hardware, but in many cases, the former is a better implementation.
  • the computer software product of the present invention is stored in a readable storage medium, such as a floppy disk, a hard disk or an optical disk of a computer, and includes a plurality of instructions for causing a computer device (which may be a personal computer, The server, or network device, etc.) performs the methods described in various embodiments of the present invention.

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  • Power Engineering (AREA)
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Description

一种功放装置及用户设备的接收装置
技术领域 本发明涉及信号处理领域， 尤其是涉及一种功放装置及用户设备的接收 装置。
背景技术
对于在移动通讯系统如宽带码分多址（Wideband Code Division Multiple Access ， WCDMA ) /码分多址 ( Code Divi s ion Mul t iple Acces s , CDMA ) / 时分多址 ( Time Divi s ion Mul t i ple Acces s , TDMA )等网络的用户设备 ( User Equipment , UE ) 的接收装置中， 功放装置为一个关键装置， 功放装置要保证 此时的音频或视频信号满足用户要求， 同时为了减少整机的功耗， 需要此时 功放装置的功放效率最高， 也就是增益放大信号的效率最高。 而随着功放装 置输出功率的下降， 功放装置的功放效率也随之单调下降。
现有技术用户设备的接收装置的功放装置， 通过信号电压组为功放装置 提供控制信号， 信号电压组中的每个信号电压具有两种状态， 两个信号电压 结合起来将提供四种控制状态中的三种控制模式， 第一种控制模式中， 向功 放管输出高偏置电压， 以保证功放管工作在高功率工作点； 第二种控制模式 中， 向功放管输出低偏置电压， 以保证功放管工作在低功率工作点； 在第三 种控制模式中， 信号通过功放装置中低功率功放管的增益放大后被输出。
在一些特定环境下， 这种 WCDMA/CDMA/TDMA等网络的移动终端设备中的 功放装置的设计太复杂， 导致在生产功放装置时的成品率比较低。 用户设备 的接收装置被整机应用时， 根据所需的不同输出功率， 信号要通过功放装置 内的不同电路来传输， 而功放装置内部不同的电路之间需要一定的转换时间， 不同电路的转换过程会影响到功放装置增益的稳定性， 导致功放装置的技术 指标的恶化。 发明内容
本发明的实施例提供一种功放装置， 用于解决现有技术中功放装置结构 复杂、 稳定性差的问题。
为达到上述目的， 本发明的实施例采用如下技术方案：
一种功放装置， 其中， 所述功放装置包括：
第一级功放管， 增益放大所有的输入信号；
与所述第一级功放管连接的第一级偏置电路， 向所述第一级功放管提供 偏置电压；
与所述第一级功放管连接的第二级功放管， 增益放大所述第一级功放管 的输出信号；
与所述第二级功放管连接的第二级偏置电路， 向所述第二级功放管提供 偏置电压；
与所述第一级偏置电路、 第二级偏置电路连接的参考电压单元， 向所述 第一级偏置电路和第二级偏置电路提供电压；
与所述第一级偏置电路、 第二级偏置电路连接的控制电压单元， 通过所 述第一级偏置电路控制所述第一级功放管的导通与关断， 以及通过所述第二 级偏置电路控制第二级功放管的导通与关断。
一种用户设备的接收装置， 其中， 包括： 功放装置、 信号接收装置和信 号发送装置；
所述信号接收装置与所述功放装置连接， 接收输入信号并传送到所述功 放装置；
所述信号发送装置与所述功放装置连接， 发送所述功放装置的输出信号； 所述功放装置包括以下部件：
第一级功放管， 增益放大所有的输入信号；
与所述第一级功放管连接的第一级偏置电路， 向所述第一级功放管提供 偏置电压；
与所述第一级功放管连接的第二级功放管， 增益放大所述第一级功放管 的输出信号； 与所述第二级功放管连接的第二级偏置电路， 向所述第二级功放管提供 偏置电压；
与所述第一级偏置电路、 第二级偏置电路连接的参考电压单元， 向所述 第一级偏置电路和第二级偏置电路提供电压；
与所述第一级偏置电路、 第二级偏置电路连接的控制电压单元， 通过所 述第一级偏置电路控制所述第一级功放管的导通与关断， 以及通过所述第二 级偏置电路控制第二级功放管的导通与关断。
其中， 所述用户设备的接收装置应用于移动通讯网络包括 WCDMA、 CDMA 和 T醒。
采用本发明实施例后， 通过简化功放装置的结构， 不仅有利于降低生产 成本， 提高生产中的成品率和稳定性。 附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案， 下面将对实 施例或现有技术描述中所需要使用的附图作简单地介绍， 显而易见地， 下面 描述中的附图仅仅是本发明的一些实施例， 对于本领域普通技术人员来讲， 在不付出创造性劳动性的前提下， 还可以根据这些附图获得其他的附图。
图 1为现有技术输出功率的概率分布图；
图 2为本发明实施例功放装置具体实施例一的结构示意图；
图 3为本发明实施例功放装置具体实施例二的结构示意图；
图 4为本发明实施例用户设备的接收装置具体实施例的结构示意图。 具体实施方式
下面将结合本发明实施例中的附图， 对本发明实施例中的技术方案进行 清楚、 完整地描述， 显然， 所描述的实施例仅仅是本发明一部分实施例， 而 不是全部的实施例。 基于本发明中的实施例， 本领域普通技术人员在没有作 出创造性劳动前提下所获得的所有其他实施例， 都属于本发明保护的范围。 根据 CDMA发展组织（CDMA Development Group，CDG)观察到的在实际 WCDMA 网络中， 当语音通话时， 用户设备的接收装置输出功率的数值分布具有一定 的规律， 图 1为现有技术输出功率的概率分布图， 由图 1 中可以看出输出信 号的功率的既率密度分布函数 ( Probabi l i ty dens i ty funct ion, PDF ) 的曲 线及其累积分布函数 ( cumulat ive di s tr ibut ion funct ion, CDF ) 的曲线。
本发明实施例的功放装置具体实施例一
图 2为本发明实施例功放装置具体实施例一的结构示意图。 如图 2所示， 本发明实施例的功放装置包括以下部件： 参考电压单元 401、 控制电压单元 402、 第一级功放管 405、 第二级功放管 406、 第一级偏置电路 407和第二级 偏置电路 408， 其中， 第一级功放管 405用于增益放大信号， 第一级偏置电路 407与第一级功放管 405连接， 用于向第一级功放管 405提供偏置电压， 第二 级功放管 406与第一级功放管 405连接， 用于增益放大第一级功放管 405增 益放大的信号， 第二级偏置电路 408与第二级功放管 406连接， 用于向第二 级功放管 406提供偏置电压， 参考电压单元 401与第一级偏置电路 407和第 二级偏置电路 408连接， 用于向第一级偏置电路 407和第二级偏置电路 408 提供电压； 控制电压单元 402与第一级偏置电路 407和第二级偏置电路 408 连接， 用于通过第一级偏置电路 407控制第一级功放管 405的导通与关断， 以及通过第二级偏置电路 408控制第二级功放管 406的导通与关断。
本发明实施例的功放装置还包括输入匹配器件 409和输出匹配器件 410， 输入匹配器件 409连接在信号输入端 403和第一级功放管 405之间， 用于将 信号匹配到第一级功放管 405 上， 以保证信号功率高效率地输入到功放装置 中， 以对信号进行高效率地放大。输出匹配器件 410连接在第二级功放管 406 和信号输出端 404之间， 用于将信号匹配到信号输出端 404上， 以保证经过 功放装置放大的功率信号能高效率地输出， P争低功率损耗， 实现对信号进行 高效率放大。
本发明实施例的功放装置还包括连接在第一级功放管 405 和第二级功放 管 406的级间匹配器件 411，用于将第一级功放管 405放大的输出信号匹配到 第二级功放管 406上， 减少由于第一级功放管 405和第二级功放管 406之间 失配导致的功率损耗， 以得到高效率增益放大的信号。
通过上述本发明实施例的功放装置， 其结构简单， 并能提高生产过程中 的成品率， 有利于降低生产成本。
本发明实施例的功放装置具体实施例二
图 3为本发明实施例功放装置具体实施例二的结构示意图。 如图 3所示， 进一步的， 本发明实施例的功放装置由以下部件构成： 参考电压单元 501、控 制电压单元 502、 功放管 505、 偏置电路 508。 其中， 功放管 505用于增益放 大输入信号， 偏置电路 508用于为功放管 505提供偏置电压， 参考电压单元 501用于向偏置电路 508提供电压； 控制电压单元 502用于通过偏置电路 508 控制第一级功放管 505的导通与关断。
本发明实施例的功放装置还包括输入匹配器件 506和输出匹配器件 507， 以避免或降低信号传输过程中的功率损耗， 提高功放装置的效率， 输入匹配 器件 506连接在信号输入端 503和功放管 505之间， 输出匹配器件 507连接 在信号输出端 504和功放管 505之间。
本发明实施例功放装置的结构进一步简化， 非常有利于降低生产成本， 提高生产过程中的效率和成品率。
本发明实施例的用户设备的接收装置具体实施例
图 4 为本发明实施例用户设备的接收装置具体实施例的结构示意图。 如 图 4所示， 本发明实施例用户设备的接收装置包括： 信号接收装置 41、 信号 发送装置 42和功放装置 40， 其中，信号接收装置 41与功放装置 40上的信号 输入端 403连接， 用于接收从通讯网络中发送的输入信号； 信号发送装置 42 与功放装置 40上的信号输出端 404连接， 用于发送经过功放装置 40增益放 大的输出信号； 功放装置 40采用上述图 2或者图 3所示的功放装置， 用于增 益放大信号接收装置 41接收所有的输入信号， 并将增益放大后的输入信号传 送到信号发送装置 42以发送给用户。
本发明实施例用户设备的接收装置上的功放装置 40采用本发明实施例功 放装置具体实施例一的技术方案， 功放装置 40包括以下部件： 参考电压单元 401、 控制电压单元 402、 第一级功放管 405、 第二级功放管 406、 第一级偏置 电路 407和第二级偏置电路 408，输入匹配器件 409、 输出匹配器件 410级间 匹配器件 411， 其中， 第一级功放管 405用于增益放大信号， 第一级偏置电路 407与第一级功放管 405连接， 用于向第一级功放管 405提供偏置电压， 第二 级功放管 406与第一级功放管 405连接， 用于增益放大第一级功放管 405增 益放大的信号， 第二级偏置电路 408与第二级功放管 406连接， 用于向第二 级功放管 406提供偏置电压， 参考电压单元 401与第一级偏置电路 407和第 二级偏置电路 408连接， 用于向第一级偏置电路 407和第二级偏置电路 408 提供电压； 控制电压单元 402与第一级偏置电路 407和第二级偏置电路 408 连接， 用于通过第一级偏置电路 407控制第一级功放管 405的导通与关断， 以及通过第二级偏置电路 408控制第二级功放管 406的导通与关断； 输入匹 配器件 409连接在信号输入端 403和第一级功放管 405之间， 用于将信号匹 配到第一级功放管 405 上， 以保证信号功率高效率地输入到功放装置中， 以 对信号进行高效率地放大； 输出匹配器件 410连接在第二级功放管 406和信 号输出端 404之间， 用于将信号匹配到信号输出端 404上， 以保证经过功放 装置放大的功率信号能高效率地输出， P争低功率损耗， 实现对信号进行高效 率放大； 级间匹配器件 411连接在第一级功放管 405和第二级功放管 406之 间， 用于将第一级功放管 405放大的输出信号匹配到第二级功放管 406上， 减少由于第一级功放管 405和第二级功放管 406之间失配导致的功率损耗， 以得到高效率增益放大的信号参考电压单元 401为第一级偏置电路 407和第 二级偏置电路 408提供电压， 控制电压单元 402通过第一级偏置电路 407控 制第一级功放管 405的导通与关断， 通过第二级偏置电路 408控制第二级功 放管 406的导通与关断。 本发明实施例的用户设备的接收装置的具体工作过程为：
信号接收装置 41从移动通讯网络中接收信号，将信号传送到功放装置 40 的信号输入端 403; 信号输入端 403将信号传输到输入匹配器件 409上， 输入 匹配器件 409将信号输入端 403输出的信号匹配到第一级功放管 405上， 第 一级功放管 405 进行第一次增益放大， 完成第一次增益放大的信号被传输到 级间匹配器件 411上， 级间匹配器件 411将第一级功放管 405输出的增益放 大的信号匹配到第二级功放管 406，第二级功放管 406对信号进行第二次增益 放大， 完成第二次增益放大的信号由输出匹配器件 410匹配到功放装置 40的 信号输出端 404，信号输出端 404将经过两次增益放大的信号传输到信号发送 装置 42， 信号发送装置 42将信号发送给用户， 从而完成信号的接收、 增益放 大和发送的过程。
本发明实施例用户设备的接收装置在增益放大信号的过程中， 其功放装 置上的参考电压为固定电压， 以提供稳定的偏置电压， 有利于在第一级功放 管和第二级功放管增益放大信号过程中保持增益状态稳定， 而且由于信号在 功放装置传输时的信号通道是唯一的， 所以避免了信号在功放装置中的信号 通道的转换， 从而提高了功放装置增益状态的稳定性。
随着通讯网络技术的发展， 数据业务的范围被进一步地拓展。 如图 1 所 示，在进行数据业务时，用户设备的接收装置的整机输出的最大功率为 24dBm， 在实际工作中输出信号的功率为 OdBm的概率很大， 所以需要终端中的功放装 置能够保证用户设备的接收装置在整机输出功率为 OdBm时功放装置输出的功 放效率比较高， 用户设备的接收装置在实际网络中有很大概率是输出功率为 lOdBm和 24dBm的信号。 这样， 在 WCDMA等网络的用户设备的接收装置中， 除 了输出功率为 OdBm的语音输出要有高功放效率夕卜，还需要在输出功率为 lOdBm 和 24dBm的信号时同样要有高功放效率。
所以本发明实施例的发明人发现， 在设计 WCDMA等通讯网络的用户设备 的接收装置时， 关键是要保证用户设备的接收装置的输出功率为 0dBm、 l OdBm 和 24dBm3个工作状态时的功放效率， 即： 一是要保证高功率状态即整机输出 功率为 24dBm时功放有很高的功放效率， 二是要保证中功率状态即整机输出 功率为 l OdBm时有较高的功放效率， 三是要保证低功率状态即整机输出功率 为 OdBm时有较高的功放效率。 本发明实施例的功放装置能保证用户设备的接 收装置的输出功率为 OdBm 、 l OdBm和 24dBm时有较高的功放效率。
本发明实施例用户设备的接收装置不仅可以应用于 WCDMA 的移动通讯网 络， 还可以应用于 CDMA和 TDMA等其它移动通讯网络， 本发明实施例用户设 备的接收装置一方面降低了用户设备的接收装置的生产成本， 提高了产品成 品率， 另一方面还可以获得高稳定性的输出信号。
通过以上的实施方式的描述， 所属领域的技术人员可以清楚地了解到本 发明可借助软件加必需的通用硬件的方式来实现， 当然也可以通过硬件， 但 很多情况下前者是更佳的实施方式。 基于这样的理解， 本发明的技术方案本 计算机软件产品存储在可读取的存储介质中， 如计算机的软盘， 硬盘或光盘 等， 包括若干指令用以使得一台计算机设备（可以是个人计算机， 服务器， 或者网络设备等）执行本发明各个实施例所述的方法。
上述具体实施例并不用以限制本发明， 对于本技术领域的普通技术人员 来说， 凡在不脱离本发明原理的前提下， 所作的任何修改、 等同替换、 改进 等， 均应包含在本发明的保护范围之内。

Claims

权 利 要求 书
1、 一种功放装置， 其特征在于， 包括：
第一级功放管， 增益放大所有的输入信号；
与所述第一级功放管连接的第一级偏置电路， 向所述第一级功放管提供偏 置电压；
与所述第一级功放管连接的第二级功放管， 增益放大所述第一级功放管的 输出信号；
与所述第二级功放管连接的第二级偏置电路， 向所述第二级功放管提供偏 置电压；
与所述第一级偏置电路、 第二级偏置电路连接的参考电压单元， 向所述第 一级偏置电路和第二级偏置电路提供电压；
与所述第一级偏置电路、 第二级偏置电路连接的控制电压单元， 通过所述 第一级偏置电路控制所述第一级功放管的导通与关断， 以及通过所述第二级偏 置电路控制第二级功放管的导通与关断。
2、 根据权利要求 1所述的功放装置， 其特征在于， 还包括：
与所述第一级功放管连接的输入匹配器件， 将与所述输入匹配器件连接的 信号输入端的信号匹配到所述第一级功放管上；
与所述第二级功放管连接的输出匹配器件， 将所述第二级功放管的信号匹 配到与所述输出匹配器件连接的信号输出端。
3、 根据权利要求 1所述的功放装置， 其特征在于， 还包括连接在所述第一 级功放管和第二级功放管之间的级间匹配器件， 将所述第一级功放管的输出信 号匹配到所述第二级功放管上。
4、一种采用权利要求 1-3任意一项所述的功放装置的用户设备的接收装置， 其特征在于， 包括： 功放装置、 信号接收装置和信号发送装置；
所述信号接收装置与所述功放装置连接， 接收输入信号并传送到所述功放 装置；
所述信号发送装置与所述功放装置连接， 发送所述功放装置的输出信号； 所述功放装置包括以下部件：
第一级功放管， 增益放大所有的输入信号；
与所述第一级功放管连接的第一级偏置电路， 向所述第一级功放管提供偏 置电压；
与所述第一级功放管连接的第二级功放管， 增益放大所述第一级功放管的 输出信号；
与所述第二级功放管连接的第二级偏置电路， 向所述第二级功放管提供偏 置电压；
与所述第一级偏置电路、 第二级偏置电路连接的参考电压单元， 向所述第 一级偏置电路和第二级偏置电路提供电压；
与所述第一级偏置电路、 第二级偏置电路连接的控制电压单元， 通过所述 第一级偏置电路控制所述第一级功放管的导通与关断， 以及通过所述第二级偏 置电路控制第二级功放管的导通与关断。
5、 根据权利要求 4所述的用户设备的接收装置， 其特征在于， 所述功放装 置还包括：
与所述第一级功放管连接的输入匹配器件， 将与所述输入匹配器件连接的 信号输入端的信号匹配到所述第一级功放管上；
与所述第二级功放管连接的输出匹配器件， 将所述第二级功放管的信号匹 配到与所述输出匹配器件连接的信号输出端。
6、 根据权利要求 4所述的用户设备的接收装置， 其特征在于， 还包括连接 在所述第一级功放管和第二级功放管之间的级间匹配器件， 用于将所述第一级 功放管的输出信号匹配到所述第二级功放管上。
7、 根据权利要求 4-6任意一项所述的用户设备的接收装置， 其特征在于， 所述用户设备的接收装置包括 WCDMA系统中的用户设备的接收装置、 CDMA系统 中的用户设备的接收装置或 TDMA系统中的用户设备的接收装置。
8、 一种功放装置， 其特征在于， 包括： 功放管、 偏置电路、 参考电压单 元及控制电压单元， 其中，
所述偏置电路与所述功放管连接， 用于向所述功放管提供偏置电压； 所述参考电压单元与所述偏置电路连接， 用于向所述偏置电路提供电压； 所述控制电压单元与所述偏置电路连接， 用于通过所述偏置电路控制所述 功放管的导通和判断。
9、 根据权利要求 8所述的功放装置， 其特征在于， 还包括：
输入匹配器件， 与所述功放管连接， 用于将与所述输入匹配器件连接的信 号输入端的信号匹配到所述功放管上；
输出匹配器件， 与所述功放管连接， 用于将所述功放管的信号匹配到与所 述输出匹配器件连接的信号输出端。
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