公开(公告)号：US08983408B2

公开(公告)日：2015-03-17

申请号：US13784127

申请日：2013-03-04

Applicant: Broadcom Corporation

Inventor： Mark Gonikberg ,  Luis Gutierrez ,  Colin Fraser ,  Arya Behzad ,  George Varghese

IPC: H04B1/04 ,  H04L27/26

CPC classification number: H04L27/2626 ,  H03F1/3241 ,  H04B1/0475 ,  H04B2001/0425

Abstract: Aspects of a method and system for estimating and compensating for non-linear distortion in a transmitter using calibration are presented. Aspects of the system may include one more circuits that may enable estimation, within a single IC device, of distortion in output signals generated by a transmitter circuit. The circuitry may enable compensation of the estimated distortion by predistorting subsequent input signals. The transmitter circuit may generate subsequent output signals based on the predistorted subsequent input signals.

公开(公告)号：US20130336373A1

公开(公告)日：2013-12-19

申请号：US13971224

申请日：2013-08-20

Applicant: Broadcom Corporation

Inventor： Arya Behzad ,  Ali Afsahi ,  Vikram Magoon ,  Mark Gonikberg ,  George Varghese ,  Guruprasad Revanna

IPC: H03F1/32

CPC classification number: H03F1/3247 ,  H03F1/3294 ,  H03F2200/336 ,  H03F2200/451 ,  H04L27/368

Abstract: Aspects of a method and system for compensating for estimated distortion in a transmitter by utilizing a digital predistortion scheme with a quadrature feedback mixer configuration are presented. Aspects of the system may include an RF transmitter that enables generation of an RF output signal in response to one or more generated input signals. One or more feedback signals may be generated by performing frequency downconversion on the RF output signal within a corresponding one or more feedback mixer circuits. The generated one or more feedback signals may be inserted at a corresponding one or more insertion points in an RF receiver. Each insertion point may be between a receiver mixer circuit and corresponding circuits that generate a baseband signal based on the corresponding one of the feedback signals.

Abstract translation: 提出了通过利用具有正交反馈混频器配置的数字预失真方案来补偿发射机中的估计失真的方法和系统的方面。 系统的方面可以包括RF发射器，其能够响应于一个或多个所生成的输入信号而产生RF输出信号。 可以通过对相应的一个或多个反馈混频器电路中的RF输出信号执行频率下变频来产生一个或多个反馈信号。 所生成的一个或多个反馈信号可以插入RF接收器中相应的一个或多个插入点。 每个插入点可以在接收机混合器电路和基于相应的一个反馈信号产生基带信号的相应电路之间。

公开(公告)号：US20130177105A1

公开(公告)日：2013-07-11

申请号：US13784127

申请日：2013-03-04

Applicant: BROADCOM CORPORATION

Inventor： Mark Gonikberg ,  Luis Gutierrez ,  Colin Fraser ,  Arya Behzad ,  George Varghese

IPC: H04L27/26

CPC classification number: H04L27/2626 ,  H03F1/3241 ,  H04B1/0475 ,  H04B2001/0425

Abstract: Aspects of a method and system for estimating and compensating for non-linear distortion in a transmitter using calibration are presented. Aspects of the system may include one more circuits that may enable estimation, within a single IC device, of distortion in output signals generated by a transmitter circuit. The circuitry may enable compensation of the estimated distortion by predistorting subsequent input signals. The transmitter circuit may generate subsequent output signals based on the predistorted subsequent input signals.

Abstract translation: 提出了一种用于使用校准估计和补偿发射机中的非线性失真的方法和系统的方面。 系统的方面可以包括一个以上电路，其可以在单个IC器件内估计由发射机电路产生的输出信号中的失真。 该电路可以通过预失真随后的输入信号来实现所估计的失真的补偿。 发射机电路可以基于预失真的后续输入信号产生后续的输出信号。

公开(公告)号：US08948700B2

公开(公告)日：2015-02-03

申请号：US13971224

申请日：2013-08-20

Applicant: Broadcom Corporation

Inventor： Arya Behzad ,  Ali Afsahi ,  Vikram Magoon ,  Mark Gonikberg ,  George Varghese ,  Guruprasad Revanna

IPC: H04B1/00 ,  H03F1/32 ,  H04L27/36

CPC classification number: H03F1/3247 ,  H03F1/3294 ,  H03F2200/336 ,  H03F2200/451 ,  H04L27/368

Abstract: Aspects of a method and system for compensating for distortion in a transmitter by utilizing a digital predistortion scheme with a feedback mixer configuration are presented. Aspects of the system may include an RF transmitter that enables generation of an RF output signal in response to one or more generated input signals. One or more feedback signals may be generated by performing frequency downconversion on the RF output signal within a corresponding one or more feedback mixer circuits. The generated one or more feedback signals may be inserted at a corresponding one or more insertion points in an RF receiver. Each insertion point may be between a receiver mixer circuit and corresponding circuits that generate a baseband signal based on the corresponding one of the feedback signals.

Abstract translation: 提出了一种通过利用具有反馈混频器配置的数字预失真方案来补偿发射机中的失真的方法和系统的方面。 系统的方面可以包括RF发射器，其能够响应于一个或多个所生成的输入信号而产生RF输出信号。 可以通过对相应的一个或多个反馈混频器电路中的RF输出信号执行频率下变频来产生一个或多个反馈信号。 所生成的一个或多个反馈信号可以插入RF接收器中相应的一个或多个插入点。 每个插入点可以在接收机混合器电路和基于相应的一个反馈信号产生基带信号的相应电路之间。