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1. 发明授权

US08917141B2 Radio frequency power amplifier circuit and method 有权
标题翻译：射频功率放大器电路及方法
公开(公告)号：US08917141B2
公开(公告)日：2014-12-23
申请号：US13505777
申请日：2012-04-10
申请人： Richard Hellberg , Tony Fonden , Mats Klingberg
发明人： Richard Hellberg , Tony Fonden , Mats Klingberg
IPC分类号： H03F3/68
CPC分类号： H03F3/211 , H03F1/0233 , H03F1/0288 , H03F3/193 , H03F2200/102 , H03F2200/451 , H03F2203/21106
摘要： An amplifier circuit is disclosed for providing a radio frequency output signal having a variable signal envelope, comprising a main amplifier device and an auxiliary amplifier and a combiner network for combining an output signal from said first amplifier device and a second output signal from said second amplifier device to provide a combined output signal of variable signal envelope to a load, and a signal processing circuit comprising an input and a non-linear processing section to provide at least said second radio frequency output signal with a signal envelope that has a non-linear dependency from an amplitude characteristic of the input signal such that the degree of non-linearity of the non-linear dependency varies dependent on the amount of change per time unit of the amplitude characteristic of the input signal. Further, a method of power amplifying a radio frequency signal having a variable signal envelope is disclosed.
摘要翻译：公开了一种用于提供具有可变信号包络的射频输出信号的放大器电路，包括主放大器装置和辅助放大器以及组合来自所述第一放大器装置的输出信号和来自所述第二放大器的第二输出信号的组合器网络用于向负载提供可变信号包络的组合输出信号的装置，以及包括输入和非线性处理部分的信号处理电路，用于向至少所述第二射频输出信号提供具有非线性的信号包络来自输入信号的幅度特性的依赖性，使得非线性依赖性的非线性度随输入信号的幅度特性的时间单位的变化量而变化。此外，公开了一种功率放大具有可变信号包络的射频信号的方法。

2. 发明申请

US20070182484A1 Adaptive predistortion method and arrangement 有权
标题翻译：自适应预失真方法和布置
公开(公告)号：US20070182484A1
公开(公告)日：2007-08-09
申请号：US11569034
申请日：2004-05-19
申请人： Tony Fonden , Richard Hellberg , Mats Klingberg
发明人： Tony Fonden , Richard Hellberg , Mats Klingberg
IPC分类号： H03F1/26
CPC分类号： H04B1/0475 , H03F1/3247 , H03F1/3294 , H03F2200/336 , H04B1/12 , H04B1/30 , H04L27/364 , H04L27/368 , H04L27/3863
摘要： An adaptive predistortion arrangement includes means (26, 40, 42, 44, 46) for up-converting a baseband signal (S1) into an intermediate frequency signal (S12) having frequency aliazing and means (18, 20, 220, 24, 26) for down-converting a radio frequency signal (S4) into an intermediate frequency signal (S7) having the same frequency aliazing as the up-converted baseband signal. An adapter (34) adapts predistortion parameters to keep the up-converted baseband signal equal to the down-converted radio frequency signal.
摘要翻译：自适应预失真装置包括用于将基带信号（S1）上变频为具有频率分散的中频信号（S12）的装置（26,40,42,44,46）和装置（18,20,22,24,44），26），用于将射频信号（S 4）下变频成具有与上转换的基带信号相同的频率分散的中频信号（S 7）。适配器（34）适应预失真参数以保持上转换的基带信号等于下变频射频信号。

3. 发明授权

US08442460B2 Method for compensating signal distortions in composite amplifiers 有权
标题翻译：用于补偿复合放大器信号失真的方法
公开(公告)号：US08442460B2
公开(公告)日：2013-05-14
申请号：US12296710
申请日：2006-04-10
申请人： Tony Fonden , Richard Hellberg , Mats Klingberg , Spendim Dalipi
发明人： Tony Fonden , Richard Hellberg , Mats Klingberg , Spendim Dalipi
IPC分类号： H04B1/04
CPC分类号： H03F1/26 , H03F1/0288 , H03F1/0294 , H03F1/3247 , H03F1/3252 , H03F1/3294 , H03F2200/228 , H03F2200/321 , H03F2200/336 , H03F2200/393 , H03F2200/78
摘要： A method for compensating signal distortions in multiple transmitting branches (3, 5; 43, 45, 46) entering a composite amplifier (1; 1′). According to the invention the method comprises the steps of: —providing (S1) one or more input signals (x) to the composite amplifier. —observing (S2) an output signal (z) from the composite amplifier (1; 1′) for each provided input signal; —deriving (S5) an error in each output signal (z) by comparing the output signal with an ideal output signal, said error being caused by said signal distortions; —deriving (S11) the individual contribution from each transmitting branch (3, 5; 43,45,46) to the error by utilizing a composite amplifier model, said composite amplifier model comprising information about the contribution from each constituent amplifier (23, 25; 103a,103b,103c) to the output signal for each provided input signal: —compensating the signal distortions in the transmitting branches (3, 5; 43,45,46) accordingly.
摘要翻译：一种用于补偿进入复合放大器（1; 1'）的多个发射分支（3,5; 43,45,46）中的信号失真的方法。根据本发明，该方法包括以下步骤：向复合放大器提供（S1）一个或多个输入信号（x）。对于每个提供的输入信号，从复合放大器（1; 1'）观察（S2）输出信号（z）通过将输出信号与理想输出信号进行比较，从而（S5）每个输出信号（z）中的误差，所述误差由所述信号失真引起; （S11）通过利用复合放大器模型将来自每个发射分支（3,5; 43,45,46）的各个贡献归因于所述误差，所述复合放大器模型包括关于来自每个组成放大器（23,25）的贡献的信息 ; 103a，103b，103c）输出到所提供的输入信号的输出信号： - 相应地补偿发送分支（3,5; 43,45,46）中的信号失真。

4. 发明授权

US07755425B2 Method and apparatus for reducing frequency memory effects in RF power amplifiers 有权
标题翻译：用于降低RF功率放大器中的频率记忆效应的方法和装置
公开(公告)号：US07755425B2
公开(公告)日：2010-07-13
申请号：US12296324
申请日：2006-04-10
申请人： Mats Klingberg , Tony Fonden
发明人： Mats Klingberg , Tony Fonden
IPC分类号： H03F1/26
CPC分类号： H03F1/3241 , H03F1/0288 , H03F3/187 , H03F2201/3209 , H03F2201/3224
摘要： The present invention relates to a predistorter for reducing memory effects in RF power amplifiers. The invention also relates to a method for reducing memory effects in RF power amplifiers and to a base station including such a predistorter. A predistorter according to the invention includes first means (1) for generating a first signal component, which is an estimate of a drain current of said amplifier, which means (1) for generating said first signal component comprises a linear filter, second means (8) for generating a second signal component as a function of said first signal component and at least one first gain function; third means (9) for generating a third signal component as a function of a conjugate of said first signal component and at least one second gain function, and fourth means (7) for combining at least said second signal component and said third signal component to form an output signal. The output signal from the predistorter is further used as input to the power amplifier, which when amplified reduces the memory effects of the amplifier.
摘要翻译：本发明涉及一种用于降低RF功率放大器中的记忆效应的预失真器。本发明还涉及用于减少RF功率放大器和包括这种预失真器的基站中的存储器效应的方法。根据本发明的预失真器包括用于产生作为所述放大器的漏极电流的估计的第一信号分量的第一装置（1），其意味着用于产生所述第一信号分量的（1）包括线性滤波器，第二装置 8），用于产生作为所述第一信号分量和至少一个第一增益函数的函数的第二信号分量; 第三装置（9），用于根据所述第一信号分量和至少一个第二增益函数的共轭产生第三信号分量;以及第四装置（7），用于将至少所述第二信号分量和所述第三信号分量组合到形成输出信号。来自预失真器的输出信号进一步用作功率放大器的输入，当放大时减小放大器的存储效应。

5. 发明授权

US07742539B2 Adaptation of IQ-error compensation 失效
标题翻译：适应智商误差补偿
公开(公告)号：US07742539B2
公开(公告)日：2010-06-22
申请号：US11568694
申请日：2005-05-17
申请人： Tony Fonden , Mats Klingberg
发明人： Tony Fonden , Mats Klingberg
IPC分类号： H04L25/49
CPC分类号： H04B1/0475 , H03F1/3247 , H03F1/3294 , H03F2200/336 , H04B1/12 , H04B1/30 , H04L27/364 , H04L27/368 , H04L27/3863
摘要： A radio transmitter with IQ-modulator error compensation includes a homodyne observation receiver (42) producing a first real baseband (S5) signal from a real radio frequency signal (S2). A real-value extracting element (44) and a down-sampler (46) convert a complex baseband signal (S1) into a second real baseband signal. An adapter (40) determines parameters controlling an IQ-error compensator (12) by minimizing the error between the two real baseband signals. In a preferred embodiment he transmitter also includes a phase shifter (56) providing three different phase shifts to compensate for the fact that the homodyne observation receiver produces a real and not a complex signal.
摘要翻译：具有IQ调制器误差补偿的无线电发射机包括从实际射频信号（S2）产生第一实际基带（S5）信号的零差观测接收机（42）。实值提取元件（44）和下采样器（46）将复基带信号（S1）转换成第二实际基带信号。适配器（40）通过最小化两个实际基带信号之间的误差来确定控制IQ误差补偿器（12）的参数。在优选实施例中，发射机还包括移相器（56），其提供三个不同的相移以补偿零差观测接收机产生真实而不是复杂信号的事实。

6. 发明授权

US07580686B2 Adaptive predistortion method and arrangement 有权
标题翻译：自适应预失真方法和布置
公开(公告)号：US07580686B2
公开(公告)日：2009-08-25
申请号：US11569034
申请日：2004-05-19
申请人： Tony Fonden , Lars Richard Birger Hellberg , Mats Klingberg
发明人： Tony Fonden , Lars Richard Birger Hellberg , Mats Klingberg
IPC分类号： H04B1/04 , H03C1/62 , H04K1/02
CPC分类号： H04B1/0475 , H03F1/3247 , H03F1/3294 , H03F2200/336 , H04B1/12 , H04B1/30 , H04L27/364 , H04L27/368 , H04L27/3863
摘要： An adaptive predistortion arrangement includes means (26, 40, 42, 44, 46) for up-converting a baseband signal (S1) into an intermediate frequency signal (S12) having frequency aliazing and means (18, 20, 220, 24, 26) for down-converting a radio frequency signal (S4) into an intermediate frequency signal (S7) having the same frequency aliazing as the up-converted baseband signal. An adapter (34) adapts predistortion parameters to keep the up-converted baseband signal equal to the down-converted radio frequency signal.
摘要翻译：自适应预失真装置包括用于将基带信号（S1）上变频为具有频率分频的中频信号（S12）的装置（26,40,42,44,46）和装置（18,20,22,24,46,46））将用于将射频信号（S4）下变频成具有与上变频基带信号相同的频率分散的中频信号（S7）。适配器（34）适应预失真参数以保持上转换的基带信号等于下变频射频信号。

7. 发明申请

US20090256632A1 METHOD AND APPARATUS FOR REDUCING FREQUENCY MEMORY EFFECTS IN RF POWER AMPLIFIERS 有权
标题翻译：用于降低RF功率放大器中频率记忆效应的方法和装置
公开(公告)号：US20090256632A1
公开(公告)日：2009-10-15
申请号：US12296324
申请日：2006-04-10
申请人： Mats Klingberg , Tony Fonden
发明人： Mats Klingberg , Tony Fonden
IPC分类号： H03F1/32 , H03F3/16
CPC分类号： H03F1/3241 , H03F1/0288 , H03F3/187 , H03F2201/3209 , H03F2201/3224
摘要： The present invention relates to a predistorter for reducing memory effects in RF power amplifiers. The invention also relates to a method for reducing memory effects in RF power amplifiers and to a base station including such a predistorter. A predistorter according to the invention includes first means (1) for generating a first signal component, which is an estimate of a drain current of said amplifier, which means (1) for generating said first signal component comprises a linear filter, second means (8) for generating a second signal component as a function of said first signal component and at least one first gain function; third means (9) for generating a third signal component as a function of a conjugate of said first signal component and at least one second gain function, and fourth means (7) for combining at least said second signal component and said third signal component to form an output signal. The output signal from the predistorter is further used as input to the power amplifier, which when amplified reduces the memory effects of the amplifier.
摘要翻译：本发明涉及一种用于降低RF功率放大器中的记忆效应的预失真器。本发明还涉及用于减少RF功率放大器和包括这种预失真器的基站中的存储器效应的方法。根据本发明的预失真器包括用于产生作为所述放大器的漏极电流的估计的第一信号分量的第一装置（1），其意味着用于产生所述第一信号分量的（1）包括线性滤波器，第二装置 8），用于产生作为所述第一信号分量和至少一个第一增益函数的函数的第二信号分量; 第三装置（9），用于根据所述第一信号分量和至少一个第二增益函数的共轭产生第三信号分量;以及第四装置（7），用于将至少所述第二信号分量和所述第三信号分量组合到形成输出信号。来自预失真器的输出信号进一步用作功率放大器的输入，当放大时减小放大器的存储效应。

8. 发明申请

US20070165745A1 Adaptation of iq-error compensation 失效
标题翻译：适应iq误差补偿
公开(公告)号：US20070165745A1
公开(公告)日：2007-07-19
申请号：US11568694
申请日：2005-05-17
申请人： Tony Fonden , Mats Klingberg
发明人： Tony Fonden , Mats Klingberg
IPC分类号： H04L25/49
CPC分类号： H04B1/0475 , H03F1/3247 , H03F1/3294 , H03F2200/336 , H04B1/12 , H04B1/30 , H04L27/364 , H04L27/368 , H04L27/3863
摘要： A radio transmitter with IQ-modulator error compensation includes a homodyne observation receiver (42) producing a first real baseband (S5) signal from a real radio frequency signal (S2). A real-value extracting element (44) and a down-sampler (46) convert a complex baseband signal (S1) into a second real baseband signal. An adapter (40) determines parameters controlling an IQ-error compensator (12) by minimizing the error between the two real baseband signals. In a preferred embodiment he transmitter also includes a phase shifter (56) providing three different phase shifts to compensate for the fact that the homodyne observation receiver produces a real and not a complex signal.
摘要翻译：具有IQ调制器误差补偿的无线电发射机包括从实际射频信号（S 2）产生第一实际基带（S 5）信号的零差观测接收机（42）。实值提取元件（44）和下采样器（46）将复基带信号（S1）转换为第二实际基带信号。适配器（40）通过最小化两个实际基带信号之间的误差来确定控制IQ误差补偿器（12）的参数。在优选实施例中，发射机还包括移相器（56），其提供三个不同的相移以补偿零差观测接收机产生真实而不是复杂信号的事实。

9. 发明申请

US20080146171A1 Generation of Modulated Radio Frequency Signals 有权
标题翻译：调制射频信号的产生
公开(公告)号：US20080146171A1
公开(公告)日：2008-06-19
申请号：US11722257
申请日：2004-12-21
申请人： Richard Hellberg , Tony Fonden
发明人： Richard Hellberg , Tony Fonden
IPC分类号： H04B1/04
CPC分类号： H03F1/32 , H03F1/0205 , H03F1/0222 , H03F2200/102
摘要： RF signal generators (1) are disclosed, having an amplitude-modulated amplifier (80) whose supply voltage (70) is a signal non-linearly filtered (33) dependent on a signal (30) being representative to an envelope signal of a desired output RF signal (81). The non-linear filtering (33) is performed preferably using an envelope-dependent boundary. An input RF signal (65) to the amplifier (80) is amplified using the supply voltage (70) to produce the desired output RF signal (81). The present invention also presents methods for driving such generators (1).
摘要翻译：公开了RF信号发生器（1），其具有幅度调制放大器（80），其幅度调制放大器（80）的电源电压（70）是取决于信号（30）的非线性滤波信号（30），该信号代表期望的输出RF信号（81）。非线性滤波（33）优选地使用包络依赖边界进行。使用电源电压（70）放大到放大器（80）的输入RF信号（65），以产生期望的输出RF信号（81）。本发明还提供了用于驱动这种发电机（1）的方法。

10. 发明授权

US07881683B2 Generation of modulated radio frequency signals 有权
标题翻译：生成调制射频信号
公开(公告)号：US07881683B2
公开(公告)日：2011-02-01
申请号：US11722257
申请日：2004-12-21
申请人： Richard Hellberg , Tony Fonden
发明人： Richard Hellberg , Tony Fonden
IPC分类号： H04B1/04
CPC分类号： H03F1/32 , H03F1/0205 , H03F1/0222 , H03F2200/102
摘要： RF signal generators (1) are disclosed, having an amplitude-modulated amplifier (80) whose supply voltage (70) is a signal non-linearly filtered (33) dependent on a signal (30) being representative to an envelope signal of a desired output RF signal (81). The non-linear filtering (33) is performed preferably using an envelope-dependent boundary. An input RF signal (65) to the amplifier (80) is amplified using the supply voltage (70) to produce the desired output RF signal (81). The present invention also presents methods for driving such generators (1).
摘要翻译：公开了RF信号发生器（1），其具有幅度调制放大器（80），其幅度调制放大器（80）的电源电压（70）是取决于信号（30）的非线性滤波信号（30），该信号代表期望的输出RF信号（81）。非线性滤波（33）优选地使用包络依赖边界进行。使用电源电压（70）放大到放大器（80）的输入RF信号（65），以产生期望的输出RF信号（81）。本发明还提供了用于驱动这种发电机（1）的方法。

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