公开(公告)号：US20150072632A1

公开(公告)日：2015-03-12

申请号：US14032688

申请日：2013-09-20

Applicant: BROADCOM CORPORATION

Inventor： Mohsen Pourkhaatoun ,  Philippe Riondet ,  Alireza Tarighat Mehrabani ,  Vipin Kumar Aggarwal

IPC: H04B1/04

CPC classification number: H04B1/0458 ,  H03F1/0238 ,  H03F1/34 ,  H03F3/195 ,  H03F3/24 ,  H03F3/245 ,  H04B2001/0416 ,  H04B2001/0433

Abstract: A RF transmitter includes a power amplifier that generates a transmit signal modulated with outbound data for transmission to a remote communication device via an antenna section. A supply voltage to power the power amplifier is adjusted based on an average power tracking signal. A reflected power from the antenna section is measured. The average power tracking signal is adjusted based on the reflected power to compensate for the changes in impedance of the antenna section and to maintain a desired linearity.

Abstract translation: RF发射机包括功率放大器，其产生用出站数据调制的发射信号，以经由天线部分传输到远程通信设备。 基于平均功率跟踪信号调整对功率放大器供电的电源电压。 测量来自天线部分的反射功率。 基于反射功率来调整平均功率跟踪信号以补偿天线部分的阻抗的变化并保持期望的线性度。

公开(公告)号：US09197255B2

公开(公告)日：2015-11-24

申请号：US14032688

申请日：2013-09-20

Applicant: BROADCOM CORPORATION

Inventor： Mohsen Pourkhaatoun ,  Philippe Riondet ,  Alireza Tarighat Mehrabani ,  Vipin Kumar Aggarwal

IPC: H04B1/04 ,  H03F1/02 ,  H03F3/195 ,  H03F3/24

CPC classification number: H04B1/0458 ,  H03F1/0238 ,  H03F1/34 ,  H03F3/195 ,  H03F3/24 ,  H03F3/245 ,  H04B2001/0416 ,  H04B2001/0433

Abstract: A RF transmitter includes a power amplifier that generates a transmit signal modulated with outbound data for transmission to a remote communication device via an antenna section. A supply voltage to power the power amplifier is adjusted based on an average power tracking signal. A reflected power from the antenna section is measured. The average power tracking signal is adjusted based on the reflected power to compensate for the changes in impedance of the antenna section and to maintain a desired linearity.

Abstract translation: RF发射机包括功率放大器，其产生用出站数据调制的发射信号，以经由天线部分传输到远程通信设备。 基于平均功率跟踪信号调整对功率放大器供电的电源电压。 测量来自天线部分的反射功率。 基于反射功率来调整平均功率跟踪信号以补偿天线部分的阻抗的变化并保持期望的线性度。