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。

公开(公告)号：US20140341318A1

公开(公告)日：2014-11-20

申请号：US13913327

申请日：2013-06-07

Applicant: Broadcom Corporation

Inventor： Mohsen Pourkhaatoun ,  Dmitriy Rozenblit ,  Masoud Kahrizi ,  Alireza Tarighat Mehrabani

IPC: H04B1/04

CPC classification number: H04B1/0475 ,  H04W52/0251 ,  H04W52/0258 ,  Y02D70/1224 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/166 ,  Y02D70/168 ,  Y02D70/23 ,  Y02D70/40

Abstract: Average Power Tracking (APT) is a technique that can be utilized for vary the supply voltage to a power amplifier (PA) on a timeslot basis in order to reduce power consumption of the PA. Systems and methods are provided for maximizing power savings associated with the PA by utilizing APT in a continuous and aggressive manner. Additionally, the systems and methods can further compensate for variations in temperature, frequency, antenna load, and peak to average power ratio (PAPR) without sacrificing the power savings.

Abstract translation: 平均功率跟踪（APT）是一种技术，可以用于在时隙上改变功率放大器（PA）的电源电压，以降低PA的功耗。 提供了系统和方法，通过以连续和积极的方式利用APT来最大化与PA相关联的功率节省。 另外，系统和方法可以进一步补偿温度，频率，天线负载和峰值与平均功率比（PAPR）的变化，而不会牺牲功率节省。