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41. 发明申请

US20190289567A1 SYSTEM AND METHOD FOR ENHANCED TRANSMITTER EFFICIENCY 审中-公开
公开(公告)号：US20190289567A1
公开(公告)日：2019-09-19
申请号：US16429302
申请日：2019-06-03
申请人： Fadhel M. Ghannouchi , Mehdi VEJDANIAMIRI , Mohamed Helaoui
发明人： Fadhel M. Ghannouchi , Mehdi VEJDANIAMIRI , Mohamed Helaoui
IPC分类号： H04W56/00 , H04B1/04 , H03F1/02 , H04L27/36 , H04L27/08 , H03F3/24 , H04L25/03
摘要： A method for distortion compensation in a transmission link comprising obtaining information of an amplitude distribution of a signal prior to being transmitted by a transmitter, receiving the transmitted signal at a receiver and determining a received signal amplitude distribution, comparing the received signal amplitude distribution to the amplitude distribution of the signal prior to transmission and using results of the comparison to estimate the AM/AM non-linearity in the transmitter.

42. 发明申请

US20170135058A1 SYSTEM AND METHOD FOR ENHANCED TRANSMITTER EFFICIENCY 审中-公开
公开(公告)号：US20170135058A1
公开(公告)日：2017-05-11
申请号：US15283888
申请日：2016-10-03
申请人： Fadhel M. Ghannouchi , Mehdi VEJDANIAMIRI , Mohamed Helaoui
发明人： Fadhel M. Ghannouchi , Mehdi VEJDANIAMIRI , Mohamed Helaoui
IPC分类号： H04W56/00 , H04L27/36
CPC分类号： H04W56/0035 , H03F1/02 , H03F3/24 , H04B1/04 , H04B2001/0408 , H04B2001/045 , H04L25/03012 , H04L25/03343 , H04L27/08 , H04L27/368 , H04W74/004 , H04W74/006 , H04W88/02 , H04W88/08
摘要： A method for distortion compensation in a transmission link comprising obtaining information of an amplitude distribution of a signal prior to being transmitted by a transmitter, receiving the transmitted signal at a receiver and determining a received signal amplitude distribution, comparing the received signal amplitude distribution to the amplitude distribution of the signal prior to transmission and using results of the comparison to estimate the AM/AM non-linearity in the transmitter.

43. 发明申请

US20140301503A1 MULTI-CELL PROCESSING ARCHITECTURES FOR MODELING AND IMPAIRMENT COMPENSATION IN MULTI-INPUT MULTI-OUTPUT SYSTEMS 审中-公开
标题翻译：用于多输入多输出系统中建模和补偿补偿的多单元处理架构
公开(公告)号：US20140301503A1
公开(公告)日：2014-10-09
申请号：US14300682
申请日：2014-06-10
申请人： Fadhel M. Ghannouchi
发明人： Fadhel M. GHANNOUCHI , Seyed Aidin BASSAM , Mohamed HELAOUI
IPC分类号： H04B1/04
CPC分类号： H04B7/0417 , H04B1/0475 , H04B7/0456 , H04B7/0632 , H04B7/0639 , H04L25/03343 , H04L25/03891
摘要： The present invention relates to a method for multiple-input multiple-output impairment pre-compensation comprising: receiving a multiple-input signal; generating a pre-distorted multiple-input signal from the received multiple-input signal; generating a multiple-output signal by feeding the pre-distorted multiple-input signal into a multiple-input and multiple-output transmitter; estimating impairments generated by the multiple-input and multiple-output transmitter; and adjusting the pre-distorted multiple-input signal to compensate for the estimated impairments. The present invention also relates to a pre-compensator for use with a multiple-input and multiple-output transmitter, comprising: a multiple-input for receiving a multiple-input signal; a matrix of pre-processing cells for generating a pre-distorted multiple-input signal from the received multiple-input signal; and a multiple-output for feeding the pre-distorted multiple-input signal to the multiple-input and multiple-output transmitter. The pre-processing cells are configured so as to estimate impairments generated by the multiple-input and multiple-output transmitter and adjust the pre-distorted multiple-input signal to compensate for the estimated impairments.
摘要翻译：本发明涉及一种用于多输入多输出损害预补偿的方法，包括：接收多输入信号; 从所接收的多输入信号产生预失真的多输入信号; 通过将预失真的多输入信号馈送到多输入和多输出发射机中来产生多输出信号; 估计由多输入和多输出发射机产生的损伤; 以及调整预失真的多输入信号以补偿估计的损伤。本发明还涉及一种用于多输入和多输出发射机的预补偿器，包括：用于接收多输入信号的多输入; 用于从所接收的多输入信号产生预失真的多输入信号的预处理单元的矩阵; 以及用于将预失真的多输入信号馈送到多输入和多输出发射器的多输出。预处理单元被配置为估计由多输入和多输出发射器产生的损伤，并且调整预失真的多输入信号以补偿估计的损伤。

44. 发明授权

US08841922B2 Passive source and load-pull architecture for high reflection factor synthesis 有权
标题翻译：用于高反射因子合成的无源和负载牵引架构
公开(公告)号：US08841922B2
公开(公告)日：2014-09-23
申请号：US13097303
申请日：2011-04-29
申请人： Fadhel M. Ghannouchi , Souheil Ben Smida , Mohammad Shabi Hashmi , Mohamed Helaoui
发明人： Fadhel M. Ghannouchi , Souheil Ben Smida , Mohammad Shabi Hashmi , Mohamed Helaoui
IPC分类号： G01R27/02 , G01R27/32
CPC分类号： G01R27/32
摘要： An enhanced loop in a passive tuner consists of an extremely low loss coupler and a high directivity circulator. In the case of source reflection factor synthesis, a passive loop generates an additional incident traveling wave. This wave, added to the primary incident traveling wave, augments the traveling wave and thus increases the magnitude of the synthesized reflection factor at the source port of a device, such as a transistor. In the case of load reflection factor synthesis, the passive loop augments the initial reflected traveling wave by pumping an additional traveling wave. This additional traveling wave helps in synthesizing a higher load reflection factor at the load port. This architecture is capable of high reflection factor synthesis that enables load synthesis even on the border of the Smith chart. There is no problem of instability with the architecture of the present invention.
摘要翻译：无源调谐器中的增强型环路由极低损耗耦合器和高方向性循环器组成。在源反射因子合成的情况下，无源环路产生附加的入射行波。加在主入射行波上的波加大了行波，从而增加了晶体管等器件的源极端的合成反射系数的大小。在负载反射因子合成的情况下，被动环通过泵浦附加的行波来增加初始反射行波。这种额外的行波有助于在负载端口合成更高的负载反射系数。该架构能够进行高反射因子合成，即使在史密斯圆图的边界也能进行负载合成。本发明的架构不存在不稳定的问题。

45. 发明授权

US08837629B2 Extended bandwidth digital Doherty transmitter 有权
标题翻译：扩展带宽数字Doherty发射机
公开(公告)号：US08837629B2
公开(公告)日：2014-09-16
申请号：US13563621
申请日：2012-07-31
申请人： Fadhel M Ghannouchi , Ramzi Darraji
发明人： Fadhel M Ghannouchi , Ramzi Darraji
IPC分类号： H04L27/00 , H03F1/02 , H03F3/60 , H04L27/36
CPC分类号： H03F1/0288 , H03F3/602 , H03F2200/408 , H04L27/367
摘要： An extended bandwidth digital Doherty transmitter includes a baseband signal processing block including a digital predistortion unit. It also includes a digital signal distribution unit and a digital phase alignment unit, a signal up-conversion block, an RF power amplification block including the carrier amplifier and one or two peaking amplifiers; and an RF Doherty combining network. In another aspect, a digital Doherty transmitter includes a baseband signal block including a digital predistortion unit, a digital signal distribution unit and an adaptive digital phase alignment unit. In this aspect a signal up-conversion block includes three digital-to-analog converters (DACs) and a tri-channel up-converter or three single-channel up-converters. There is also an RF power amplification block including the carrier amplifier and two peaking amplifiers, and an RF Doherty combining network which includes quarter wavelength impedance transformers.
摘要翻译：扩展带宽数字Doherty发射机包括包括数字预失真单元的基带信号处理块。它还包括数字信号分配单元和数字相位对准单元，信号上变换块，包括载波放大器和一个或两个峰化放大器的RF功率放大块; 和RF Doherty组合网络。另一方面，数字Doherty发射机包括包括数字预失真单元，数字信号分配单元和自适应数字相位对准单元的基带信号块。在这方面，信号上变换块包括三个数模转换器（DAC）和三通道上变频器或三个单通道上变频器。还有一个RF功率放大块，包括载波放大器和两个峰值放大器，以及包括四分之一波长阻抗变换器的RF Doherty组合网络。

46. 发明授权

US08767857B2 Multi-cell processing architectures for modeling and impairment compensation in multi-input multi-output systems 有权
标题翻译：多输入多输出系统中用于建模和损伤补偿的多单元处理架构
公开(公告)号：US08767857B2
公开(公告)日：2014-07-01
申请号：US12780455
申请日：2010-05-14
申请人： Seyed Aidin Bassam , Fadhel M. Ghannouchi , Mohamed Helaoui
发明人： Seyed Aidin Bassam , Fadhel M. Ghannouchi , Mohamed Helaoui
IPC分类号： H04L27/28
CPC分类号： H04B7/0417 , H04B1/0475 , H04B7/0456 , H04B7/0632 , H04B7/0639 , H04L25/03343 , H04L25/03891
摘要： The present invention relates to a method for multiple-input multiple-output impairment pre-compensation comprising: receiving a multiple-input signal; generating a pre-distorted multiple-input signal from the received multiple-input signal; generating a multiple-output signal by feeding the pre-distorted multiple-input signal into a multiple-input and multiple-output transmitter; estimating impairments generated by the multiple-input and multiple-output transmitter; and adjusting the pre-distorted multiple-input signal to compensate for the estimated impairments. The present invention also relates to a pre-compensator for use with a multiple-input and multiple-output transmitter, comprising: a multiple-input for receiving a multiple-input signal; a matrix of pre-processing cells for generating a pre-distorted multiple-input signal from the received multiple-input signal; and a multiple-output for feeding the pre-distorted multiple-input signal to the multiple-input and multiple-output transmitter. The pre-processing cells are configured so as to estimate impairments generated by the multiple-input and multiple-output transmitter and adjust the pre-distorted multiple-input signal to compensate for the estimated impairments.
摘要翻译：本发明涉及一种用于多输入多输出损害预补偿的方法，包括：接收多输入信号; 从所接收的多输入信号产生预失真的多输入信号; 通过将预失真的多输入信号馈送到多输入和多输出发射机中来产生多输出信号; 估计由多输入和多输出发射机产生的损伤; 以及调整预失真的多输入信号以补偿估计的损伤。本发明还涉及一种用于多输入和多输出发射机的预补偿器，包括：用于接收多输入信号的多输入; 用于从所接收的多输入信号产生预失真的多输入信号的预处理单元的矩阵; 以及用于将预失真的多输入信号馈送到多输入和多输出发射器的多输出。预处理单元被配置为估计由多输入和多输出发射器产生的损伤，并且调整预失真的多输入信号以补偿估计的损伤。

47. 发明授权

US06275105B1 Adaptive linearization of a feedforward amplifier by complex gain stabilization of the error amplifier 失效
标题翻译：通过误差放大器的复增益稳定自适应线性化前馈放大器
公开(公告)号：US06275105B1
公开(公告)日：2001-08-14
申请号：US09498863
申请日：2000-02-07
申请人： Fadhel M. Ghannouchi , François Beauregard , Ammar B. Kouki , Marco Bouchard
发明人： Fadhel M. Ghannouchi , François Beauregard , Ammar B. Kouki , Marco Bouchard
IPC分类号： H03F100
CPC分类号： H03F1/3235
摘要： In a feedforward amplifier for amplifying an input signal in order to produce an amplified output signal, an error signal representative of distortion in the amplified output signal is produced and an adaptive linearization circuit is provided. In this adaptive linearization circuit, serially interconnected attenuator, phase shifter and error amplifier process the error signal to produce a feature-adjusted error signal. A coupling member combines the feature-adjusted error signal in the amplified output signal in order to cancel distortion in this amplified output signal, and a comparator/controller circuit is responsive to the error signal and the feature-adjusted error signal to control the attenuator and the phase shifter.
摘要翻译：在用于放大输入信号以产生放大的输出信号的前馈放大器中，产生表示放大的输出信号中的失真的误差信号，并且提供自适应线性化电路。在这种自适应线性化电路中，串联互连的衰减器，移相器和误差放大器处理误差信号以产生特征调整的误差信号。耦合部件将放大的输出信号中的特征调整后的误差信号组合起来，以消除该放大的输出信号中的失真，并且比较器/控制器电路响应于误差信号和特征校正的误差信号来控制衰减器，移相器。

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