Design Technologies for Silicon-Based High-Efficiency RF Power Amplifiers:A Brief Overview  

作　　者：Ruili Wu Jerry Lopez Yan Li Donald Y.C.Lie 

机构地区：[1]Department of Electrical and Computer Engineering,Texas Tech University

出　　处：《ZTE Communications》2011年第3期28-35,共8页中兴通讯技术（英文版）

摘　　要：This paper presents a brief overview of several promising design technologies for high efficiency silicon-based radio frequency （RF） power amplifiers （PAs） as well as the use of these technologies in mobile broadband wireless communications. Four important aspects of PA design are addressed in this paper. First, we look at class-E PA design equations and provide an example of a class-E PA that achieves efficiency of 65-70% at 2.4 GHz. Then, we discuss state-of-the-art envelope tracking （ET） design for monolithic wideband RF mobile transmitter applications. A brief overview of Doherty PA design for the next-generation wireless handset applications is then given. Towards the end of the paper, we discuss an inherently broadband and highly efficient class-J PA design targeting future multi-band multi-standard wireless communication protocols.This paper presents a brief overview of several promising design technologies for high efficiency silicon-based radio frequency （RF） power amplifiers （PAs） as well as the use of these technologies in mobile broadband wireless communications. Four important aspects of PA design are addressed in this paper. First, we look at class-E PA design equations and provide an example of a class-E PA that achieves efficiency of 65-70% at 2.4 GHz. Then, we discuss state-of-the-art envelope tracking （ET） design for monolithic wideband RF mobile transmitter applications. A brief overview of Doherty PA design for the next-generation wireless handset applications is then given. Towards the end of the paper, we discuss an inherently broadband and highly efficient class-J PA design targeting future multi-band multi-standard wireless communication protocols.

关 键 词：radio frequency power amplifier silicon-based power amplifier envelope tracking class-E amplifier broadband PA class-J Doherty power amplifier 

分 类 号：TN722.75[电子电信—电路与系统] TQ051.85[化学工程]