公开(公告)号：WO1997008822A1

公开(公告)日：1997-03-06

申请号：PCT/US1996010827

申请日：1996-06-25

Applicant: MOTOROLA INC.

Inventor： MOTOROLA INC. ,  CLARK, Joseph, L. ,  PLYMALE, Leroy, Jr.

IPC: H03F01/32

CPC classification number: H03F1/3229 ,  H03F2201/3212

Abstract: A control scheme is implemented to improve the transmission quality of a wideband output signal (132) transmitted by a power amplifier (100) in a wideband communication system. The scheme utilizes a control processor (502) to instruct a pair of digital-to-anallog converters (538, 542) to control carrier cancellation in a carrier cancellation block (104). The control processor (502) also instructs a different set of a digital-to-analog converters (546, 550) to control intermodulation product cancellation in an intermodulation product cancellation block (133). By optimizing cancellation of both the carrier and the intermodulation products, the linearity of the power amplifier (100) is improved.

Abstract translation: 执行控制方案以提高宽带通信系统中由功率放大器（100）发送的宽带输出信号（132）的传输质量。 该方案利用控制处理器（502）来指示一对数字到肛门转换器（538,542）来控制载波消除块（104）中的载波消除。 控制处理器（502）还指示不同组的数模转换器（546,550）来控制互调产物消除块（133）中的互调产物消除。 通过优化载波和互调产物的消除，提高了功率放大器（100）的线性度。

公开(公告)号：WO1995019066A1

公开(公告)日：1995-07-13

申请号：PCT/US1995000445

申请日：1995-01-11

Applicant: ERICSSON GE MOBILE COMMUNICATIONS INC.

Inventor： ERICSSON GE MOBILE COMMUNICATIONS INC. ,  DENT, Paul, W. ,  LAMPE, Ross, W.

IPC: H03F03/68

CPC classification number: H04B1/1607 ,  H03F1/0294 ,  H03F1/3229 ,  H03F1/3252 ,  H03F1/34 ,  H03F3/24 ,  H03F3/602 ,  H04B1/04 ,  H04B1/0483 ,  H04B1/52 ,  H04B2001/0433

Abstract: An amplifying apparatus for linearly amplifying a desired signal using a pair of coupled non-linear amplifiers (57) is disclosed. The amplifying apparatus comprises a limiter (21) for separating amplitude variations from the desired signal and producing a constant amplitude signal bearing the phase of the desired signal and an amplitude related signal. In addition, a drive signal generator (62) produces two drive signals each dependent on the constant amplitude signal and the amplitude related signal such that each drive signal depends on the phase of the desired signal and such that the sum of the squares of the amplitudes of the drive signals is constant. Finally, a coupler (56) couples the two drive signals to produce two constant amplitude signals for driving the pair of non-linear power amplifiers (57) and for coupling the outputs of the power amplifiers (57) to produce two amplified output signals, one of which is the linearly amplified desired signal and the other of which is a waste energy signal.

Abstract translation: 公开了一种用于使用一对耦合的非线性放大器（57）线性放大期望信号的放大装置。 该放大装置包括限幅器（21），用于将振幅变化与期望信号分离，并产生一个恒定振幅信号，该信号承载期望信号的相位和振幅相关信号。 此外，驱动信号发生器（62）产生两个驱动信号，每个驱动信号依赖于恒定幅度信号和振幅相关信号，使得每个驱动信号取决于期望信号的相位，并且使得幅度的平方和 的驱动信号是恒定的。 最后，耦合器（56）将两个驱动信号耦合以产生用于驱动一对非线性功率放大器（57）的两个恒定幅度信号，并耦合功率放大器（57）的输出以产生两个放大的输出信号， 其中之一是线性放大的期望信号，另一个是废能信号。

公开(公告)号：WO2015187072A1

公开(公告)日：2015-12-10

申请号：PCT/SE2014/050678

申请日：2014-06-04

Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)

Inventor： HAAPALATHI, Olov

IPC: H03K5/13 ,  H03K5/14 ,  H03F1/02

CPC classification number: H03K5/131 ,  H03F1/3229 ,  H03F1/56 ,  H03F3/195 ,  H03F3/211 ,  H03F3/245 ,  H03F3/50 ,  H03F2200/411 ,  H03K5/14 ,  H03K2005/00058 ,  H04L25/03

Abstract: A method, a program code and a controllable delay unit (300) for managing amplitude slope of an input signal (310) and phase slope of the input signal (310) are disclosed. The controllable delay unit (300) comprises an input port (301) configured to receive the input signal (310), and a delay chain (303) configured to provide discrete phase slopes of the input signal (310) at a first set (306) of switchable ports and at a second set (307) of switchable ports. Furthermore, the controllable delay unit (300) comprises a combining sub-unit (308) configured to combine a first and a second discretely delayed signal into an output signal (311), wherein the amplitude slope of the output signal (311) is dependable on a difference between phase slope of the first and second delayed signals and the phase slope of the output signal (311) is dependable on combined phase slope of the first and second delayed signals, and a controlling unit (309) configured to control, based on a control signal (312), the first and second set of switchable ports of the delay chain (303).

Abstract translation: 公开了一种用于管理输入信号（310）的幅度斜率和输入信号（310）的相位斜率的方法，程序代码和可控延迟单元（300）。 可控延迟单元（300）包括被配置为接收输入信号（310）的输入端口（301）和被配置为在第一组（306）处提供输入信号（310）的离散相位斜率的延迟链 ）和可切换端口的第二组（307）。 此外，可控延迟单元（300）包括组合子单元（308），其被配置为将第一和第二离散延迟的信号组合成输出信号（311），其中输出信号（311）的幅度斜率是可靠的 在第一和第二延迟信号的相位斜率与输出信号（311）的相位斜率之间的差异是依赖于第一和第二延迟信号的组合相位斜率，以及控制单元（309），被配置为基于 在控制信号（312）上，延迟链（303）的第一和第二组可切换端口。

公开(公告)号：WO2013042031A1

公开(公告)日：2013-03-28

申请号：PCT/IB2012/054918

申请日：2012-09-17

Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) ,  SMILEY, Russell ,  BAI, Chunlong

Inventor： SMILEY, Russell ,  BAI, Chunlong

IPC: H03F1/32

CPC classification number: H03F1/3247 ,  H03F1/3229 ,  H03F3/189 ,  H03F3/245 ,  H03F2201/3212

Abstract: In accordance with the present disclosure, there is provided a predistorter combined with a feedforward corrector that addresses power dissipation of the feedforward error path while maintaining a sufficiently simple digital predistortion model so as to further minimize power dissipation without sacrificing linearity.

Abstract translation: 根据本公开，提供了一种与前馈校正器组合的预失真器，其用于解决前馈误差路径的功率耗散，同时保持足够简单的数字预失真模型，以便在不牺牲线性度的情况下进一步最小化功率耗散。

公开(公告)号：WO2012061385A1

公开(公告)日：2012-05-10

申请号：PCT/US2011/058785

申请日：2011-11-01

Applicant: NEWLANS, INC. ,  GUPTA, Dev, V.

Inventor： GUPTA, Dev, V.

IPC: H03F1/32 ,  H03F3/24

CPC classification number: H03F3/211 ,  H03F1/3229 ,  H03F3/195 ,  H03F3/245 ,  H03F3/45188 ,  H03F2200/405 ,  H03F2203/45644 ,  H03F2203/45684

Abstract: In an embodiment, a circuit includes a variable group delay configured to delay a wideband input signal to obtain a delayed input signal; a wideband operational amplifier configured to determine an error signal based on a difference between the delayed input signal and a linearized power amplifier output; a feedback amplifier configured to amplify the error signal to obtain an amplified error signal; and a directional combiner configured to combine the amplified error signal with the power amplifier output to obtain the linearized power amplifier output.

Abstract translation: 在一个实施例中，电路包括被配置为延迟宽带输入信号以获得延迟的输入信号的可变组延迟; 宽带运算放大器，被配置为基于延迟输入信号和线性化功率放大器输出之间的差异来确定误差信号; 反馈放大器，被配置为放大所述误差信号以获得放大的误差信号; 以及方向组合器，其被配置为将放大的误差信号与功率放大器输出组合以获得线性化的功率放大器输出。

公开(公告)号：WO2009123999A1

公开(公告)日：2009-10-08

申请号：PCT/US2009/038867

申请日：2009-03-31

Applicant: HARRIS CORPORATION

Inventor： MARTIN, G., Patrick ,  MOFFATT , Christopher D . ,  TONTI , James

IPC: H03F1/32

CPC classification number: H03F1/3229

Abstract: RF amplifier system (200) incorporating feedforward linearization. The system includes a digital waveform source (202) generating digital data s(t) representative of at least one analog signal. The system also includes a feedforward linearization circuit for reducing a distortion of an RF power amplifier (212). The feedforward linearization circuit includes a differential amplifier (230) arranged for generating an error signal. The error signal is determined based on a difference between the distorted RF output signal and an analog RF reference signal (229) generated from the digital data.

Abstract translation: RF放大器系统（200）包含前馈线性化。 该系统包括产生代表至少一个模拟信号的数字数据s（t）的数字波形源（202）。 该系统还包括用于减少RF功率放大器（212）的失真的前馈线性化电路。 前馈线性化电路包括布置成用于产生误差信号的差分放大器（230）。 基于从数字数据产生的失真的RF输出信号和模拟RF参考信号（229）之间的差异来确定误差信号。

公开(公告)号：WO2007077838A1

公开(公告)日：2007-07-12

申请号：PCT/JP2006/325959

申请日：2006-12-26

Applicant: 松下電器産業株式会社 ,  清水 克人 ,  漆原 伴哉

Inventor： 清水 克人 ,  漆原 伴哉

IPC: H03F1/32 ,  H04B1/04

CPC classification number: H03F3/24 ,  H03F1/02 ,  H03F1/3223 ,  H03F1/3229 ,  H03F1/3241 ,  H03F2200/468 ,  H03F2201/3212 ,  H04B1/0475 ,  H04B2001/0425

Abstract: 　本発明は、入力ベースバンド信号と電力増幅器の出力信号との同期をとる同期調整回路を必要とせずに、適応歪補償処理を行うことが可能な極座標変調送信装置を提供することを目的とする。 　適応動作制御部１５０１にて電力増幅器１の出力スペクトラムのアンバランス量を測定し、前記アンバランス量が所定の閾値以上の場合には、歪補償処理回路１３０１に出力する係数情報を調整して、歪補償処理回路１３０１における歪補償処理に対する調整を行い、前記アンバランス量が所定の閾値未満の場合には、係数情報を維持するように適応動作制御部１５０１の係数調整判断部が反復制御することで、入力ベースバンド信号と電力増幅器１からの出力信号との同期をとる同期調整回路を用いずに、周囲温度変化時の電力増幅器１の特性変化を適応的に補償することができる。

Abstract translation: 可以提供一种能够执行自适应失真补偿处理的极坐标调制传输装置，而不需要用于使输入基带信号与功率放大器的输出信号同步的同步调整电路。 自适应操作控制单元（1501）测量功率放大器（1）的输出频谱的不平衡量。 当不平衡量等于或高于预定阈值时，调整要输出到失真补偿处理电路（1301）的系数信息，以对失真补偿处理电路（1301）中的失真补偿处理进行调整。 当不平衡量低于预定阈值时，自适应操作控制单元（1501）的系数调整判断单元执行重复控制以维持系数信息。 因此，可以在不使用用于使输入基带信号与来自功率放大器（1）的输出信号同步的同步调整电路的情况下自适应地补偿功率放大器（1）的特性变化。

公开(公告)号：WO2006016980A2

公开(公告)日：2006-02-16

申请号：PCT/US2005021928

申请日：2005-06-20

Applicant: PARATEK MICROWAVE INC ,  SHAMSAIFAR KHOSRO ,  SENGUPTA LOUISE C

Inventor： SHAMSAIFAR KHOSRO ,  SENGUPTA LOUISE C

IPC: H04B1/00 ,  H04B1/06 ,  H04B1/10

CPC classification number: H03F1/3229 ,  H03F1/3223 ,  H04B1/126

Abstract: An embodiment of the present invention provides an apparatus capable of interference cancellation, comprising a first antenna capable of receiving an electrical signal, said electrical signal comprising a main signal component and an interfering signal component; a second antenna capable of receiving said electrical signal and passing it to a tunable delay line, said tunable delay line capable of varying the time delay of said electrical signal; and a combiner capable of receiving the electrical signal from said first antenna and the time delayed electrical signal from said tunable delay line and combining them so as to cancel said interfering signal component from said electrical signal. An embodiment of the present invention also provides an apparatus capable of interference cancellation, comprising an antenna capable of receiving an electrical signal, said electrical signal comprising a main signal component and an interfering signal component; and a feed back loop in which a portion of said electrical signal passes through a cancellation path that includes a tunable delay line capable of time delaying said electrical signal such that when a coupler recombines said electrical signals said interfering signal component from said electrical signal is substantially cancelled.

Abstract translation: 本发明的实施例提供一种能够进行干扰消除的装置，包括能够接收电信号的第一天线，所述电信号包括主信号分量和干扰信号分量; 第二天线，其能够接收所述电信号并将其传递到可调延迟线，所述可调延迟线能够改变所述电信号的时间延迟; 以及能够从所述第一天线接收电信号和来自所述可调延迟线的时间延迟电信号并组合它们以从所述电信号中消除所述干扰信号分量的组合器。 本发明的实施例还提供了一种能够进行干扰消除的装置，包括能够接收电信号的天线，所述电信号包括主信号分量和干扰信号分量; 以及反馈回路，其中所述电信号的一部分通过消除路径，该消除路径包括可延时所述电信号的可调延迟线，使得当耦合器将所述电信号复合时，来自所述电信号的所述干扰信号分量基本上 取消。

公开(公告)号：WO2006016973A2

公开(公告)日：2006-02-16

申请号：PCT/US2005021778

申请日：2005-06-21

Applicant: PARATEK MICROWAVE INC ,  SHAMSAIFAR KHOSRO

Inventor： SHAMSAIFAR KHOSRO

IPC: H04B1/00 ,  H04B1/06 ,  H04B1/10

CPC classification number: H03F1/3229 ,  H03F1/3223 ,  H04B1/126

Abstract: An embodiment of the present invention provides an apparatus, comprising a feed forward amplifier capable of receiving an input signal and including a plurality of cancellation loops, wherein at least one of the cancellation loops includes a tunable delay line enabling the reduction of intermodulation distortion and receive band noise when outputs from the plurality of cancellation loops are combined with the input signal to the feed forward amplifier. In an embodiment of the present invention the plurality of cancellation loops may be two cancellations loops and a tunable delay line may be included in both of the cancellation loops. Further, the tunable delay line may be a voltage tunable delay line that includes a voltage tunable dielectric capacitor to facilitate the control of the tunable delay and the voltage tunable dielectric capacitor may include a layer of voltage tunable dielectric material positioned on a surface of a low loss, low dielectric substrate.

Abstract translation: 本发明的一个实施例提供了一种装置，包括能够接收输入信号并包括多个消除回路的前馈放大器，其中至少一个消除回路包括能够减小互调失真的可调谐延迟线以及接收 当来自多个消除回路的输出与输入信号组合到前馈放大器时， 在本发明的一个实施例中，多个消除环路可以是两个消除环路，并且可调延迟线路可以包括在两个消除环路中。 此外，可调延迟线可以是电压可调延迟线，其包括电压可​​调谐电介质电容器以促进对可调延迟的控制，并且电压可调电介质电容器可以包括位于低电位表面上的电压可调电介质材料层 损耗低，介电基板。

公开(公告)号：WO2005109630A1

公开(公告)日：2005-11-17

申请号：PCT/US2005/015944

申请日：2005-05-04

Applicant: RAYTHEON COMPANY ,  GOREE, Leven, H.

Inventor： GOREE, Leven, H.

IPC: H03F1/32

CPC classification number: H03F1/3229 ,  H03F2200/192 ,  H03F2200/204

Abstract: Amplifying signals includes receiving an input signal (12). The input signal (12) is amplified at a quadrature coupled amplifier (52) to generate an amplified signal. The input signal is compared with the amplified signal to generate an error signal (46). The error signal (46) is amplified at the quadrature coupled amplifier to generate an amplified error signal. The amplified error signal is compared with the amplified signal to generate an output signal.

Abstract translation: 放大信号包括接收输入信号（12）。 输入信号（12）在正交耦合放大器（52）处被放大以产生放大信号。 将输入信号与放大的信号进行比较以产生误差信号（46）。 误差信号（46）在正交耦合放大器被放大以产生放大的误差信号。 将放大的误差信号与放大的信号进行比较以产生输出信号。