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31. 发明申请

US20190165733A1 High Efficiency Ultra-Wideband Amplifier 审中-公开
公开(公告)号：US20190165733A1
公开(公告)日：2019-05-30
申请号：US16180072
申请日：2018-11-05
申请人： Fadhel M. Ghannouchi
发明人： Mohammadhassan Akbarpour , Fadhel M. Ghannouchi , Mohamed Helaoui
IPC分类号： H03F1/02 , H03F3/21 , H03F3/193 , H03F3/26
摘要： An amplifier comprising a current-biased active device, a voltage-biased active device, the voltage-biased active device and the current-biased active device are connected in series, to form a cascade of active devices, and an input terminal and an output terminal, the cascade of active devices connected between the input terminal and the output terminal, having an output terminal for driving a load impedance with an output signal in response to an input signal applied to the input terminal.

32. 发明申请

US20150244402A1 SYSTEM AND METHOD FOR ENHANCED TRANSMITTER EFFICIENCY 有权
标题翻译：用于增强发射机效率的系统和方法
公开(公告)号：US20150244402A1
公开(公告)日：2015-08-27
申请号：US14631375
申请日：2015-02-25
申请人： Fadhel M. Ghannouchi , Mehdi VEJDANIAMIRI , Mohamed Helaoui
发明人： Fadhel M. Ghannouchi , Mehdi VEJDANIAMIRI , Mohamed Helaoui
IPC分类号： H04B1/04 , H04L27/26
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.
摘要翻译：一种用于传输链路中的失真补偿的方法，包括：在由发射机发送之前获取信号的振幅分布的信息，在接收机处接收所发射的信号，并确定接收的信号幅度分布，将接收到的信号幅度分布与在传输之前信号的幅度分布和使用比较结果来估计发射机中的AM / AM非线性度。

33. 发明申请

US20140211886A1 ALL-DIGITAL MULTI-STANDARD TRANSMITTER ARCHITECTURE USING DELTA-SIGMA MODULATORS 有权
标题翻译：全数字多标准发射机结构使用DELTA-SIGMA调制器
公开(公告)号：US20140211886A1
公开(公告)日：2014-07-31
申请号：US14227236
申请日：2014-03-27
申请人： Fadhel M. GHANNOUCHI
发明人： Fadhel M. GHANNOUCHI , Mohamed HELAOUI , Safar HATAMI , Renato NEGRA
IPC分类号： H04L27/36 , H04B1/04
CPC分类号： H04L27/36 , H04B1/0475 , H04B14/062
摘要： The present disclosure is concerned with a digital transmitter using Delta-Sigma modulators (DMSs) that uses an up-sampler and modulator block that follows the DSMs to generate the RF equivalent of the baseband signal to be transmitted. The up-sampler and modulator block is simple to implement and contains only one or a few multiplexers implemented in high speed logic technology.
摘要翻译：本公开涉及使用Δ-Σ调制器（DMS）的数字发射机，其使用跟随DSM的上采样器和调制器块来产生要发射的基带信号的RF等效物。上采样器和调制器模块易于实现，并且只包含一个或几个在高速逻辑技术中实现的多路复用器。

34. 发明申请

US20100316157A1 MULTI-CELL PROCESSING ARCHITECTURES FOR MODELING AND IMPAIRMENT COMPENSATION IN MULTI-INPUT MULTI-OUTPUT SYSTEMS 有权
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：US20100316157A1
公开(公告)日：2010-12-16
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。

35. 发明授权

US11050491B2 Radio access network using radio over fibre 有权
公开(公告)号：US11050491B2
公开(公告)日：2021-06-29
申请号：US16932975
申请日：2020-07-20
申请人： Fadhel M Ghannouchi
发明人： Fadhel M Ghannouchi , Mahmood R Noweir , Mohamed Helaoui
IPC分类号： H04B10/2575 , H04B10/112 , H04B10/61 , H04B10/50 , H04B10/532
摘要： A radio communication system comprising an optical carrier generator for generating at least a pair of frequency spaced optical carrier signals, a transceiver configured to modulate a first portion of the pair of spaced optical carrier signals with downlink (DL) information to generate a modulated first optical signal, combine an unmodulated second optical signal formed of a remaining unmodulated second portion of the pair of spaced optical carrier signals with the modulated first optical signal to form a combined optical signal for transmission over an optical link, receive an optical uplink (UL) signal from said optical link, said optical UL signal comprising UL information modulated on said unmodulated second portion of the spaced optical carrier signals and down convert said received optical UL signal using a photodetector to output an electrical signal at a baseband frequency.

36. 发明授权

US11025202B2 High efficiency ultra-wideband amplifier 有权
公开(公告)号：US11025202B2
公开(公告)日：2021-06-01
申请号：US16180072
申请日：2018-11-05
申请人： Fadhel M. Ghannouchi
发明人： Mohammadhassan Akbarpour , Fadhel M. Ghannouchi , Mohamed Helaoui
IPC分类号： H03F1/02 , H03F1/22 , H03F1/32 , H03F1/56 , H03F3/195 , H03F3/21 , H03F3/30 , H03F3/193 , H03F3/26
摘要： An amplifier comprising a current-biased active device, a voltage-biased active device, the voltage-biased active device and the current-biased active device are connected in series, to form a cascade of active devices, and an input terminal and an output terminal, the cascade of active devices connected between the input terminal and the output terminal, having an output terminal for driving a load impedance with an output signal in response to an input signal applied to the input terminal.

37. 发明申请

US20210105071A1 Radio Access Network using Radio Over Fibre 有权
公开(公告)号：US20210105071A1
公开(公告)日：2021-04-08
申请号：US16932975
申请日：2020-07-20
申请人： Fadhel M. Ghannouchi
发明人： Fadhel M. Ghannouchi , Mahmood R. Noweir , Mohamed Helaoui
IPC分类号： H04B10/2575 , H04B10/112 , H04B10/532 , H04B10/50 , H04B10/61
摘要： A radio communication system comprising an optical carrier generator for generating at least a pair of frequency spaced optical carrier signals, a transceiver configured to modulate a first portion of the pair of spaced optical carrier signals with downlink (DL) information to generate a modulated first optical signal, combine an unmodulated second optical signal formed of a remaining unmodulated second portion of the pair of spaced optical carrier signals with the modulated first optical signal to form a combined optical signal for transmission over an optical link, receive an optical uplink (UL) signal from said optical link, said optical UL signal comprising UL information modulated on said unmodulated second portion of the spaced optical carrier signals and down convert said received optical UL signal using a photodetector to output an electrical signal at a baseband frequency.

38. 发明授权

US10958296B2 Digital multi-band predistortion linearizer with non-linear subsampling algorithm in the feedback loop 有权
公开(公告)号：US10958296B2
公开(公告)日：2021-03-23
申请号：US15583343
申请日：2017-05-01
申请人： Fadhel M. Ghannouchi
发明人： Fadhel M. Ghannouchi , Seyed Aidin Bassam , Mohamed Helaoui , Andrew Kwan
IPC分类号： H04B1/04 , H04L25/03 , H03F3/189 , H03F1/32 , H03F3/24
摘要： A concurrent multi-band linearized transmitter (CMLT) has a concurrent d a multi-band predistortion block (CDMPB) and a concurrent multi-band transmitter (CMT) connected to the CDMPB, The CDMPB can have a plurality of digital baseband signal predistorter blocks (DBSPBs), an analyzing and modeling (A&M) stage, and a signal observation feedback loop. Each DBSPB can have a plurality of inputs, each corresponding to a single frequency band of the multi-band input signal, and its output corresponding to a single frequency band; each output connect corresponding to an input of the CMLT. The A&M stage can have a plurality of outputs connected to and updating the parameters of the DBSPBs, and a plurality of inputs connected to either both outputs of the signal observation loop or the output of the subsampling loop and to outputs of the DBSPBs. The A&M stage can perform signals' time alignment, reconstruction of signals and compute parameters of DBSPBs.

39. 发明申请

US20200212967A1 MULTI-CELL PROCESSING ARCHITECTURES FOR MODELING AND IMPAIRMENT COMPENSATION IN MULTI-INPUT MULTI-OUTPUT SYSTEMS 审中-公开
公开(公告)号：US20200212967A1
公开(公告)日：2020-07-02
申请号：US16812452
申请日：2020-03-09
申请人： Fadhel M. Ghannouchi
发明人： Fadhel M. GHANNOUCHI , Seyed Aidin BASSAM , Mohamed HELAOUI , Ramzi DARRAJI
IPC分类号： H04B7/0417 , H04L25/03 , H04B1/04 , H04B7/0456 , H04B7/06
摘要： A method for predistortion comprising receiving a plurality of input signals forming a multiple-input signal in a multiple-input multiple-output system, 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, the impairments comprising nonlinear crosstalk between distinct ones of the plurality of input signals; and adjusting the pre-distorted multiple-input signal to compensate for the estimated impairments.

40. 发明申请

US20200067551A1 SYSTEM AND METHOD FOR A FREQUENCY SELECTIVE RECEIVER 审中-公开
公开(公告)号：US20200067551A1
公开(公告)日：2020-02-27
申请号：US16498413
申请日：2018-04-03
申请人： Fadhel M Ghannouchi , Abdul Hasan , Mohamed Helaoui
发明人： Fadhel M Ghannouchi , Abdul Hasan , Mohamed Helaoui
IPC分类号： H04B1/12
摘要： A receiver comprising a signal phase shifting block generating concurrent phase shifted copies of an input signal, and an impedance translation function block configured to receive the phase shifted copies of the input signal and generate a down converted signal wherein the impedance translation function block is driven by a single clock signal of frequency determined by a desired carrier frequency. The receiver including an energy harvesting block coupled to the phase shifting block to receive one or more in-band or out-of-band interferers in the input signal and reflected signals from the impedance translation function block due to nonlinearities.

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