Power supply modulation for RF applications
Power supply modulation for RF applications
复制标题
RF 应用的电源调制
DOI：
10.1109/epepemc.2012.6397531
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发表时间：
2012
期刊：
影响因子：
--
通讯作者：
M. Berroth
中科院分区：
文献类型：
--
作者：
A. Brackle;L. Rathgeber;F. Siegert;S. Heck;M. Berroth
包络跟踪是提高射频功率放大器处理非恒定包络信号效率的一种很有前途的方法。功率放大器电源电压的自适应由电压调制器电路完成，该电路主要基于电力电子电路，但要求带宽高达MHz区域。本文介绍了包络跟踪的优点和挑战，并概述了几种电压调制器结构。给出了g类调制器的电流测量数据。
Envelope tracking is a promising means to enhance radio frequency power amplifier efficiency for signals with non-constant envelope. The adaption of the power amplifier supply voltage is performed by a voltage modulator circuit, which is mainly based upon power electronics circuits, but requires bandwidths up to the MHz region. This paper introduces the benefits and challenges of envelope tracking and gives an overview of several voltage modulator architectures. Current measurement data of a class-G modulator is presented as well.