Design of Broadband High-Efficiency Power Amplifiers Based on a Series of Continuous Modes

Author

Jinhu Chen ; Songbai He ; Fei You ; Renbin Tong ; Ruimin Peng

Author_Institution

Sch. of Electron. Eng., Univ. of Electron. Sci. & Technol. of China, Chengdu, China

Volume

24

Issue

9

fYear

2014

fDate

Sept. 2014

Firstpage

631

Lastpage

633

Abstract

In this letter, a series of continuous modes for designing broadband high-efficiency power amplifiers (PAs) are proposed, which extend the continuous mode concept. The impedance solutions space based on these modes offer a greater freedom for realizing broadband high-efficiency PAs. To verify this theory, a high-efficiency PA over a 54.5% bandwidth from 1.6 to 2.8 GHz is designed. The simulated results show that the fundamental impedances in this PA are found to be in good agreement with the calculated ones. Moreover, this PA delivers average output power of 14.2 W with an average drain efficiency of 75.7% in the target band.

Keywords

UHF power amplifiers; microwave power amplifiers; network synthesis; power amplifiers; wideband amplifiers; broadband high-efficiency PA; broadband high-efficiency power amplifiers; continuous mode concept; drain efficiency; frequency 1.6 GHz to 2.8 GHz; power 14.2 W; Bandwidth; Broadband communication; Frequency measurement; Harmonic analysis; Impedance; Impedance matching; Power generation; Broadband; continuous modes; high-efficiency; output matching network; power amplifiers (PAs);

fLanguage

English

Journal_Title

Microwave and Wireless Components Letters, IEEE

Publisher

ieee

ISSN

1531-1309

Type

jour

DOI

10.1109/LMWC.2014.2331457

Filename

6851208