改善射频功率放大器线性度的方法、补偿电路及通信终端

    公开(公告)号:WO2017107949A1

    公开(公告)日:2017-06-29

    申请号:PCT/CN2016/111483

    申请日:2016-12-22

    Inventor: 陈吉

    CPC classification number: H03F1/32 H03F1/3276

    Abstract: 一种改善射频功率放大器线性度的方法,以及用于实施该方法的补偿电路(307)及具有该补偿电路(307)的通信终端。该方法中,在共发射极放大器(306)的晶体管的基极(a3)与集电极(b3)之间连接补偿电路(307),用于抵消晶体管(306)的基极(a3)与集电极(b3)之间的电容随射频信号变化造成的影响。不需要引入额外的直流功耗,并且不会引起其他射频功率放大器性能的恶化。相应的补偿电路(307)易于与主体放大电路集成,且不影响主体放大电路的其他性能,可调性高。

    MULTI-STAGE LINEARIZER
    2.
    发明申请
    MULTI-STAGE LINEARIZER 审中-公开
    多级线性化器

    公开(公告)号:WO2016029190A1

    公开(公告)日:2016-02-25

    申请号:PCT/US2015/046424

    申请日:2015-08-21

    Abstract: A high-linearity linearizer system includes a multi-stage linearizer circuit formed by cascading multiple linearizer circuits. The multi-stage linearizer circuit is configured to pre-distort an input signal to generate a pre-distorted signal. A non-linear high-power amplifier (HPA) having non-linear characteristics is coupled to the multi-stage linearizer circuit and is configured to amplify the pre-distorted signal. Pre-distortion characteristics of the multi-stage linearizer circuit are configured to counter the non-linear characteristics of the non-linear HPA and to compensate a non-linearity of the non-linear HPA to achieve a desired level of linearity.

    Abstract translation: 高线性线性化系统包括通过级联多个线性化电路而形成的多级线性化电路。 多级线性化电路被配置为对输入信号进行预失真以产生预失真信号。 具有非线性特性的非线性高功率放大器(HPA)耦合到多级线性化电路,并被配置为放大预失真信号。 多级线性化电路的预失真特性被配置为对抗非线性HPA的非线性特性并且补偿非线性HPA的非线性以实现期望的线性水平。

    POWER AMPLIFIER BASED ON DOHERTY POWER AMPLIFIER
    3.
    发明申请
    POWER AMPLIFIER BASED ON DOHERTY POWER AMPLIFIER 审中-公开
    基于DOHERTY功率放大器的功率放大器

    公开(公告)号:WO2012175106A1

    公开(公告)日:2012-12-27

    申请号:PCT/EP2011/060215

    申请日:2011-06-20

    Abstract: The invention provides a power amplifier (300) arranged to receive an input power signal (Pin) at an input port of a three port Input Power Splitter, IPS. The IPS is arranged to deliver a main input power signal (P1) to a main amplifier branch and an auxiliary input power signal (P2) to an auxiliary amplifier branch. The power amplifier (300) is arranged to deliver an output power signal (Pout) to a common node. A Phase Compensation Network, PCN, is arranged in the main amplifier branch. A Nonlinear Driver Amplifier, NDA, is arranged in the auxiliary amplifier branch. The NDA is arranged to increase the gain in the auxiliary amplifier branch. The invention also provides a corresponding method and a node in a wireless communication system comprising the power amplifier.

    Abstract translation: 本发明提供了一种功率放大器(300),其布置成在三端口输入功率分配器(IPS)的输入端口处接收输入功率信号(Pin)。 IPS被配置为将主输入功率信号(P1)传送到主放大器分支和辅助输入功率信号(P2)到辅助放大器分支。 功率放大器(300)被布置成将输出功率信号(Pout)传递给公共节点。 相位补偿网络PCN安排在主放大器分支中。 非线性驱动放大器NDA布置在辅助放大器分支中。 NDA被设置为增加辅助放大器分支中的增益。 本发明还提供了包括功率放大器的无线通信系统中的相应方法和节点。

    AMPLIFIER LINEARIZATION USING NON-LINEAR PREDISTORTION
    4.
    发明申请
    AMPLIFIER LINEARIZATION USING NON-LINEAR PREDISTORTION 审中-公开
    使用非线性预测的放大器线性化

    公开(公告)号:WO2005050827A3

    公开(公告)日:2006-07-13

    申请号:PCT/IB2004003790

    申请日:2004-11-20

    CPC classification number: H03F1/32 H03F1/3247 H03F1/3276 H03F2201/3227

    Abstract: Apparatus for amplifying an input signal having an input signal power includes a power amplifier (22), which is adapted to amplify an intermediate signal so as to generate an output signal, and which is characterized by a non­-linearity. A non-linear filter (24) is coupled to decompose the input signal into a series of input signal components, each such component proportional to a product of the input signal by a respective integer power of the input signal power, and is adapted to filter the signal components responsively to the non-linearity so as to generate the intermediate signal for input to the power amplifier (22).

    Abstract translation: 用于放大具有输入信号功率的输入信号的装置包括功率放大器(22),功率放大器(22)适于放大中间信号以产生输出信号,其特征在于非线性。 耦合非线性滤波器(24)以将输入信号分解为一系列输入信号分量,每个这样的分量与输入信号乘以输入信号功率的相应整数倍成比例,并适于滤波 响应于非线性的信号分量,以产生用于输入到功率放大器(22)的中间信号。

    リニアライザ
    5.
    发明申请
    リニアライザ 审中-公开
    线性化

    公开(公告)号:WO2006046294A1

    公开(公告)日:2006-05-04

    申请号:PCT/JP2004/016033

    申请日:2004-10-28

    CPC classification number: H03F1/3276 H03F1/3223 H03F2200/468

    Abstract:  リニアライザの利得性を、利得が減少した後に増加する谷特性にする。  RF信号の入力端子1、入力側バイアス阻止用キャパシタ4、互いに逆極性のダイオード対8,12、出力側バイアス阻止用キャパシタ5、およびRF信号の出力端子2が順次直列接続された信号路と、入力側バイアス阻止用キャパシタ4とダイオード対8,12との間の信号路とバイアス端子3との間に抵抗7が設けられたバイアス回路と、バイアス端子3と抵抗7との間のバイアス回路に一端が接続され他端が接地されたRF短絡用キャパシタ6と、ダイオード対8,12と出力側バイアス阻止用キャパシタ5との間の信号路に一端が接続され他端が接地されたDCフィード用インダクタ11とを備えた。

    Abstract translation: 具有V形增益特性的线性化器,其中增益减小然后增加。 线性化装置包括:信号路径,包括RF信号输入端(1),输入侧偏置阻塞电容(4),反向极性的一对二极管(8,12),输出侧偏置阻塞电容(5) 和串联连接的RF信号输出端子(2); 偏置电路,其在偏置端子(3)和输入侧偏置阻塞电容器(4)与所述一对二极管(8,12)之间的信号路径之间设置有电阻器(7)。 RF短路电容器(6),其一端连接到偏置端子(3)和电阻器(7)之间的偏置电路,另一端接地; 和一个直流馈电电感(11),其一端连接在一对二极管(8,12)和输出侧偏压电容器(5)之间的信号通路,另一端接地。

    歪補償回路
    6.
    发明申请
    歪補償回路 审中-公开
    失真补偿器

    公开(公告)号:WO2006033193A1

    公开(公告)日:2006-03-30

    申请号:PCT/JP2005/011781

    申请日:2005-06-28

    CPC classification number: H03F1/3205 H03F1/3276 H03F3/191

    Abstract: 入力電力の増加に対して、利得が圧縮し位相が遅れる特性を有する増幅器の非線形性を補償することができる歪補償回路を提供する。 歪補償回路100のダイオード105にインダクタ112を直列に接続する。入力電力の増加と共にダイオード105の抵抗成分が低下するため、ダイオード105に直列に接続されているインダクタ112のインピーダンスの効果が現れ、歪補償回路100のインピーダンスがインダクティブになり位相が進む特性が得られる。同時に、入力電力の増加と共にダイオード105の抵抗成分が低下するため、損失が低減されて、利得が増加する特性が得られる。

    Abstract translation: 能够补偿具有这样的特性的放大器的非线性的失真补偿电路,即增益被压缩为输入功率而增加,从而导致相位滞后。 电感器(112)与失真补偿电路(100)中的二极管(105)串联连接。 由于二极管(105)的电阻分量随着输入功率的增加而减小,所以出现与二极管(105)串联连接的电感器(112)的阻抗效应,并且失真补偿电路(100)的阻抗的特性, 变成电感以引起相位超前。 由于二极管(105)的电阻分量随着输入功率的增加而减小,所以损耗减小,增益增加特性得以实现。

    PREDISTORTION LINEARIZING
    7.
    发明申请
    PREDISTORTION LINEARIZING 审中-公开
    预测线性化

    公开(公告)号:WO2004038910A3

    公开(公告)日:2004-07-01

    申请号:PCT/IB0304583

    申请日:2003-10-17

    Inventor: BLEDNOV IGOR I

    Abstract: A method for a predistortion linearization of a branched signal for a RF amplifier, comprising supplying a branched signal to at least one input terminal (2); distributing power of the input signal present on at least one input terminal (2) to a plurality of parallel branch-circuits (16, 18, 20) as a branched signals by a power distributing circuit (4); controlling a phase parameter and an amplitude parameter of the branched signals by at least one nonlinear branch-circuit (18, 20); controlling a phase parameter and an amplitude parameter of the branched signals by at least one linear branch-circuit (16); combining output branched signals of at least one nonlinear branch circuit (18, 20) with the output branched signals of at least one linear branch circuit (16) by a power combining circuit (12); providing an output branched signal of the power combining circuit (12) on at least one output terminal (14). Furthermore, a circuit for a predistortion unit linearizing a signal for a RF amplifier and a layout of a predistortion linearization of a signal for a RF amplifier are disclosed.

    Abstract translation: 一种用于RF放大器的分支信号的预失真线性化的方法,包括向至少一个输入端子(2)提供分支信号; 通过配电电路(4)将存在于至少一个输入端子(2)上的输入信号的功率作为分支信号分配给多个并联分支电路(16,18,20); 通过至少一个非线性分支电路(18,20)控制分支信号的相位参数和振幅参数; 通过至少一个线性分支电路(16)控制分支信号的相位参数和振幅参数; 通过功率组合电路(12)将至少一个非线性分支电路(18,20)的输出分支信号与至少一个线性分支电路(16)的输出分支信号组合; 在至少一个输出端子(14)上提供功率组合电路(12)的输出分支信号。 此外,公开了一种用于使RF放大器的信号线性化的预失真单元的电路以及用于RF放大器的信号的预失真线性化的布局。

    LINEARIZER FOR MICROWAVE AMPLIFIER
    8.
    发明申请
    LINEARIZER FOR MICROWAVE AMPLIFIER 审中-公开
    线性放大器用于微波放大器

    公开(公告)号:WO01006642A1

    公开(公告)日:2001-01-25

    申请号:PCT/FR2000/001977

    申请日:2000-07-07

    CPC classification number: H03F1/3276

    Abstract: The invention concerns a device for linearizing a microwave signal subsequently submitted to an amplification stage, consisting of a free wave tube or a solid-state amplifier. A resolver consisting of a circulator and a Schottky-barrier diode adapted to low amplitude signals generates, with less expensive assembling and adjusting components, a compression channel and an expansion channel with excellent insulation and stability performances. The invention is applicable in telecommunications or to radar.

    Abstract translation: 本发明涉及用于线性化微波信号的装置,其随后提交到由自由波管或固态放大器组成的放大级。 由循环器和适用于低振幅信号的肖特基势垒二极管组成的旋转变压器产生具有优异绝缘和稳定性能的压缩通道和扩展通道,具有较便宜的组装和调节部件。 本发明适用于电信或雷达。

    PREDISTORTION LINEARIZER CIRCUIT
    9.
    发明申请
    PREDISTORTION LINEARIZER CIRCUIT 审中-公开
    预测线性化电路

    公开(公告)号:WO9910987A9

    公开(公告)日:1999-06-24

    申请号:PCT/FI9800649

    申请日:1998-08-24

    CPC classification number: H03F1/3276 H04B1/62

    Abstract: A predistortion linearizer circuit comprising an amplitude distorting part (AM/AM) and a phase distorting part (AM/PM). At least the phase distorting part (AM/PM) comprises broadband biasing means (51) and a non-linear transmission line (L51/D51 to L55/D55) responsive to them. The biasing means (51) are arranged to bias the non-linear transmission line (L51/D51 to L55/D55) to a substantially phase distorting area. The characteristics of the circuit can be changed by adjusting a biasing voltage (VB1) or by switching some of the diodes (D54, D55) inactive by activation signals (VA1, VA2). The amplitude distorting part (AM/AM) and the phase distorting part (AM/PM) can be similar in structure, but the diodes (D51 to D55) are partly forward-biased, whereby the losses caused by them decrease the amplitude of the signal.

    Abstract translation: 包括幅度失真部分(AM / AM)和相位失真部分(AM / PM)的预失真线性化电路。 至少相位失真部分(AM / PM)包括响应于它们的宽带偏置装置(51)和非线性传输线(L51 / D51至L55 / D55)。 偏置装置(51)被布置成将非线性传输线(L51 / D51至L55 / D55)偏置到基本相位失真区域。 通过调节偏置电压(VB1)或者通过激活信号(VA1,VA2)使一些二极管(D54,D55)无效来改变电路的特性。 振幅失真部分(AM / AM)和相位失真部分(AM / PM)的结构可能相似,但二极管(D51〜D55)部分正向偏置,由此造成的损耗降低了 信号。

    MEASURING METHOD AND DEVICE FOR MEASURING THE DISTORTION OF A HIGH FREQUENCY POWER AMPLIFIER AND CORRECTION METHOD AND DEVICE FOR THE AUTOMATIC CORRECTION OF A HIGH FREQUENCY POWER AMPLIFIER
    10.
    发明申请
    MEASURING METHOD AND DEVICE FOR MEASURING THE DISTORTION OF A HIGH FREQUENCY POWER AMPLIFIER AND CORRECTION METHOD AND DEVICE FOR THE AUTOMATIC CORRECTION OF A HIGH FREQUENCY POWER AMPLIFIER 审中-公开
    测量方法和测量器具,用于测量高频功率放大器和均衡的方法和装置自动均衡失真等化高频功率放大器

    公开(公告)号:WO99005784A1

    公开(公告)日:1999-02-04

    申请号:PCT/EP1998/004717

    申请日:1998-07-28

    CPC classification number: H03F1/3276 H03F1/3247 H03F1/3282

    Abstract: The invention relates to a correcting device for automatically correcting a high frequency power amplifier. Said correcting device has a mechanism for generating a reference carrier from a measured input signal (7) of the high frequency power amplifier, and a first synchronous demodulator (8) for generating an input envelope curve from the measured input signal (7) and from the reference signal. The inventive device also has a second synchronous demodulator (9) for generating an inphase component of an output envelope curve from the measured output signal (6) of the high frequency power amplifier (3) and from the reference carrier, as well as a phase modifier (12) for displacing the phase of the reference carrier by 90 DEG . A third synchronous demodulator (10) generates a quadrature component of the output envelope curve from the measured output signal (6) of the high frequency power amplifier (3) and from the reference carrier which is by 90 DEG out of phase. A control device (24) generates an amplitude correction control signal and/or a phase correction control signal from the input envelope curve, from the inphase component of the output envelope curve and/or from the quadrature component of the output envelope curve. The modulation characteristic and/or phase characteristic of a correcting device (2) is set by the amplitude correction factor and the phase correction factor inversely to the modulation characteristic and/or the phase characteristic of the high frequency power amplifier (3).

    Abstract translation: 均衡装置,用于自动均衡高频功率放大器包括:用于从所测量的输入信号产生基准载波的装置(7)的高频功率放大器,以及用于从所测量的输入信号产生一个输入包络的第一同步解调器(8)的(7)和所述 参考信号。 此外,第二同步解调器(9),用于从所测得的输出信号产生一个输出包络的同相分量(6)的高频功率放大器(3)和参考载波,和一个移相器(12),用于以90°的基准载波的相移的 提供。 第三同步解调器(10)被用于生成从高频功率放大器(3)的所测量的输出信号(6)和输出包络线的正交分量的相移90 DEG参考载波。 控制器(24)用于产生一个振幅Korrekur控制信号和/或从输入包络线的相位校正控制信号,输出包络线和/或输出包络线的正交分量的同相分量。 预失真装置(2)的调制特性和/或相位特性由幅度校正因子和相位Korrekurfaktor逆到调制特性调整和/或高频功率放大器的相位特性(3)。

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