Synergistic design of DSP and power amplifiers for wireless communications

被引：36

作者：

Asbeck, PM ^{[1
]}

Larson, LE ^{[1
]}

Galton, IG ^{[1
]}

机构：

[1] Univ Calif San Diego, Dept Elect & Comp Engn, La Jolla, CA 92093 USA

来源：

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 2001年 / 49卷 / 11期

关键词：

delta-sigma modulation; digital radio; RF power amplifier;

D O I：

10.1109/22.963154

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Co-design of digital signal-processing (DSP) algorithms and power-amplifier characteristics can lead to improved efficiency and linearity through a variety of strategies including: predistortion, DSP control over bias conditions, particularly the power supply voltage, and DSP generation of digital input signals for switching amplifiers. This paper discusses several amplifier architectures that exemplify these approaches, including: bias-controlled amplifiers, linear amplification with nonlinear components amplifiers, and class-S amplifiers. We envision for the future a generation of "smart power amplifiers," in which DSP optimization of amplifier parameters is carried out for changing environments.

引用

页码：2163 / 2169

页数：7

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