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公开(公告)号：US09871491B2
公开(公告)日：2018-01-16
申请号：US15332682
申请日：2016-10-24
Applicant: Ali Mohamed Darwish
Inventor： Ali Mohamed Darwish
CPC classification number: H03F1/3247 , H03F1/3282 , H03F1/3288 , H03F1/56 , H03F3/193 , H03F3/245 , H03F2200/192 , H03F2200/204 , H03F2200/222 , H03F2200/318 , H03F2200/387 , H03F2200/411 , H03F2201/3212 , H03F2201/3227 , H03F2201/3231 , H03F2201/3233 , H03G1/0029 , H03G1/0035 , H03G1/007 , H03G3/3036
Abstract: The present disclosure describes a method and system for linearizing an amplifier using transistor-level dynamic feedback. The method and system enables nonlinear amplifiers to exhibit linear performance using one or more of gain control elements and phase shifters in the feedback path. The disclosed method and system may also allow an amplifier to act as a pre-distorter or a frequency/gain programmable amplifier.
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公开(公告)号：US09813028B2
公开(公告)日：2017-11-07
申请号：US15251871
申请日：2016-08-30
Applicant: FUJITSU LIMITED
Inventor： Satoshi Matsubara , Hideharu Shako
CPC classification number: H03F1/32 , H03F1/3247 , H03F3/19 , H03F3/245 , H03F2201/3231 , H03F2201/3233 , H04W88/02
Abstract: an amplifier amplifies electrical power of signals. A calculating unit calculates a cumulative value for each of first samples and second samples, between which a difference in electrical power or phase is within a first range, in a first sample group and a second sample group corresponding to a first signal that is a signal before amplification in the amplifier and a second signal that is a signal after amplification in the amplifier. Then, the calculating unit calculates, by using the calculated cumulative value, a phase difference between the first signal and the second signal. The correction unit corrects the phase difference by using a correction amount calculated from the phase difference. The updating unit updates, by using the first signal and the second signal of which the phase difference is corrected, a distortion compensation coefficient that is used to compensate nonlinear distortion generated in the amplifier.
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33.发明申请WEIGHTED MEMORY POLYNOMIAL METHOD AND SYSTEM FOR POWER AMPLIFIERS PREDISTORTION 审中-公开用于功率放大器预测的加权记忆多项式和系统公开(公告)号：US20170047899A1
公开(公告)日：2017-02-16
申请号：US15281900
申请日：2016-09-30
Inventor： Abdalla Ebrahim ABDELRAHMAN , Oualid HAMMI , Azzedine ZERGUINE
CPC classification number: H03F1/3247 , H03F1/0205 , H03F1/3241 , H03F1/3258 , H03F3/19 , H03F3/21 , H03F3/245 , H03F2200/451 , H03F2201/3224 , H03F2201/3231 , H04B1/0475 , H04B2001/0425
Abstract: A system and method for linearizing a power amplifier using digital predistortion technique is provided including processing circuitry, the processing circuitry configured to apply a digital predistortion function based on a weighted static polynomial function, a weighted dynamic polynomial function and a threshold parameter which splits the nonlinear transfer characteristics of the device under test into a region where the static nonlinearity predominates and a region where the dynamic distortions predominate.
Abstract translation: 提供了一种使用数字预失真技术线性化功率放大器的系统和方法，包括处理电路，所述处理电路被配置为基于加权静态多项式函数应用数字预失真函数，加权动态多项式函数和阈值参数，其分割非线性 将被测器件的传输特性转化为静态非线性占优势的区域以及动态失真占优势的区域。
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公开(公告)号：US08952752B1
公开(公告)日：2015-02-10
申请号：US13712676
申请日：2012-12-12
Applicant: Steven E. Huettner
Inventor： Steven E. Huettner
CPC classification number: H03F3/602 , H03F1/3241 , H03F2201/3231
Abstract: A power-combined amplifier and method are provided. In one aspect, the power-combined amplifier and method overcome problems associated with decreased output power efficiency caused by phase mismatch between constituent amplifiers.
Abstract translation: 提供了一种功率组合放大器和方法。 一方面，功率组合放大器和方法克服了由于组成放大器之间的相位失配引起的输出功率效率降低的问题。
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公开(公告)号：US08018277B2
公开(公告)日：2011-09-13
申请号：US12860732
申请日：2010-08-20
Applicant: Serge Francois Drogi , Vikas Vinayak
Inventor： Serge Francois Drogi , Vikas Vinayak
IPC: H03G3/20
CPC classification number: H03F1/3247 , H03F1/0227 , H03F1/0238 , H03F1/56 , H03F3/19 , H03F2200/387 , H03F2200/78 , H03F2200/99 , H03F2201/3231
Abstract: A power amplifier controller circuit controls an adjustable impedance matching network at the output of a power amplifier to vary its load line to improve the efficiency of the RF PA. The PA controller circuit comprises an amplitude control loop that determines an amplitude correction signal. The amplitude loop is configured to control or correct for distortion from the adjustable matching network based upon the amplitude correction signal.
Abstract translation: 功率放大器控制器电路在功率放大器的输出端控制可调阻抗匹配网络，以改变其负载线，以提高RF PA的效率。 PA控制器电路包括确定幅度校正信号的幅度控制环路。 振幅环路被配置为基于幅度校正信号来控制或校正来自可调匹配网络的失真。
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Patent Agency Ranking
公开(公告)号：US20110043282A1
公开(公告)日：2011-02-24
申请号：US12860732
申请日：2010-08-20
Applicant: Serge Francois Drogi , Vikas Vinayak
Inventor： Serge Francois Drogi , Vikas Vinayak
IPC: H03G3/20
CPC classification number: H03F1/3247 , H03F1/0227 , H03F1/0238 , H03F1/56 , H03F3/19 , H03F2200/387 , H03F2200/78 , H03F2200/99 , H03F2201/3231
Abstract: A power amplifier controller circuit controls an adjustable impedance matching network at the output of a power amplifier to vary its load line to improve the efficiency of the RF PA. The PA controller circuit comprises an amplitude control loop that determines an amplitude correction signal. The amplitude loop is configured to control or correct for distortion from the adjustable matching network based upon the amplitude correction signal.
Abstract translation: 功率放大器控制器电路在功率放大器的输出端控制可调阻抗匹配网络，以改变其负载线，以提高RF PA的效率。 PA控制器电路包括确定幅度校正信号的幅度控制环路。 振幅环路被配置为基于幅度校正信号来控制或校正来自可调匹配网络的失真。
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公开(公告)号：US07782134B2
公开(公告)日：2010-08-24
申请号：US12366568
申请日：2009-02-05
Applicant: Serge Francois Drogi , Vikas Vinayak
Inventor： Serge Francois Drogi , Vikas Vinayak
IPC: H03G3/20
CPC classification number: H03F3/19 , H03F1/0227 , H03F1/0238 , H03F1/3247 , H03F1/56 , H03F3/24 , H03F2200/387 , H03F2200/78 , H03F2200/99 , H03F2201/3231 , H04B1/0458
Abstract: A power amplifier controller circuit controls an adjustable impedance matching network at the output of a power amplifier to vary its load line to improve the efficiency of the RF PA. The PA controller circuit comprises an amplitude control loop that determines an amplitude correction signal. The amplitude loop is configured to control or correct for distortion from the adjustable matching network based upon the amplitude correction signal.
Abstract translation: 功率放大器控制器电路在功率放大器的输出端控制可调阻抗匹配网络，以改变其负载线，以提高RF PA的效率。 PA控制器电路包括确定幅度校正信号的幅度控制环路。 振幅环路被配置为基于幅度校正信号来控制或校正来自可调匹配网络的失真。
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公开(公告)号：US20100060357A1
公开(公告)日：2010-03-11
申请号：US12366568
申请日：2009-02-05
Applicant: Serge Francois Drogi , Vikas Vinayak
Inventor： Serge Francois Drogi , Vikas Vinayak
IPC: H03F1/00
CPC classification number: H03F3/19 , H03F1/0227 , H03F1/0238 , H03F1/3247 , H03F1/56 , H03F3/24 , H03F2200/387 , H03F2200/78 , H03F2200/99 , H03F2201/3231 , H04B1/0458
Abstract: A power amplifier controller circuit controls an adjustable impedance matching network at the output of a power amplifier to vary its load line to improve the efficiency of the RF PA. The PA controller circuit comprises an amplitude control loop that determines an amplitude correction signal. The amplitude loop is configured to control or correct for distortion from the adjustable matching network based upon the amplitude correction signal.
Abstract translation: 功率放大器控制器电路在功率放大器的输出端控制可调阻抗匹配网络，以改变其负载线，以提高RF PA的效率。 PA控制器电路包括确定幅度校正信号的幅度控制环路。 振幅环路被配置为基于幅度校正信号来控制或校正来自可调匹配网络的失真。
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公开(公告)号：US07639755B2
公开(公告)日：2009-12-29
申请号：US10951040
申请日：2004-09-22
Applicant: Hiroyoshi Ishikawa , Tokuro Kubo , Kazuo Nagatani , Yasuyuki Oishi , Hajime Hamada , Nobukazu Fudaba , Toru Maniwa , Hiroyuki Hayashi
Inventor： Hiroyoshi Ishikawa , Tokuro Kubo , Kazuo Nagatani , Yasuyuki Oishi , Hajime Hamada , Nobukazu Fudaba , Toru Maniwa , Hiroyuki Hayashi
IPC: H04K1/02
CPC classification number: H03F1/3247 , H03F2201/3231 , H03F2201/3233
Abstract: A distortion compensating apparatus calculates a distortion compensation coefficient in such a manner that a difference signal between a reference signal, which is a transmit signal, and a feedback signal will be diminished, updates an old distortion compensation coefficient by the calculated distortion compensation coefficient and applies distortion compensation to the transmit signal based upon this distortion compensation coefficient. In this apparatus, a phase correcting interval, which is for correcting the phase difference between the reference signal and the feedback signal, and a distortion compensation coefficient updating interval are generated alternately, a correction is applied so as to null the phase difference in the phase correcting interval, and the distortion compensation coefficient is updated in the distortion compensation coefficient updating interval.
Abstract translation: 失真补偿装置以这样的方式来计算失真补偿系数，使得作为发送信号的参考信号与反馈信号之间的差信号将被减小，通过计算出的失真补偿系数来更新旧的失真补偿系数并应用 基于该失真补偿系数对发送信号进行失真补偿。 在该装置中，交替地产生用于校正参考信号和反馈信号之间的相位差的相位校正间隔和失真补偿系数更新间隔，进行校正，以使相位中的相位差无效 在失真补偿系数更新间隔中更新失真补偿系数。
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40.发明申请RF POWER AMPLIFIER CONTROLLED BY ESTIMATED DISTORTION LEVEL OF OUTPUT SIGNAL OF POWER AMPLIFIER 有权功率放大器的输出信号的估计失真电平控制的射频功率放大器公开(公告)号：US20090117865A1
公开(公告)日：2009-05-07
申请号：US11935614
申请日：2007-11-06
Applicant: Vikas Vinayak , Serge Francois Drogi , Martin Tomasz
Inventor： Vikas Vinayak , Serge Francois Drogi , Martin Tomasz
IPC: H04B1/04
CPC classification number: H04B1/0475 , H03F1/0227 , H03F1/0238 , H03F1/0244 , H03F1/3247 , H03F2200/102 , H03F2200/336 , H03F2201/3231
Abstract: A radio frequency (RF) power amplifier system is provided, in which a distortion of the RF output signal from the power amplifier is estimated by comparing the RF output signal with reference modulation information. The supply voltage to the power amplifier is adjusted so that the estimated distortion of the RF output signal corresponds to a predetermined distortion level. The predetermined distortion level is set to represent an acceptable distortion level at the RF output signal.
Abstract translation: 提供射频（RF）功率放大器系统，其中通过将RF输出信号与参考调制信息进行比较来估计来自功率放大器的RF输出信号的失真。 对功率放大器的电源电压进行调整，使得RF输出信号的估计失真对应于预定的失真水平。 预定的失真电平被设置为表示RF输出信号处的可接受的失真电平。
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