A 900 MHz outphasing power amplifier

Author

Zhou, Yijun ; Chia, Michael Yan-Wah ; Ang, Chiew Kok

Author_Institution

Inst. for Infocomm Res., A*STAR, Singapore, Singapore

Volume

1

fYear

2010

fDate

20-23 Sept. 2010

Firstpage

1

Lastpage

4

Abstract

A novel 900 MHz outphasing power amplifier using LDMOS transistors has been developed. It uses a distributed active transformer for high efficiency impedance transformation and lossless power combining. The current mode class-D amplification technique is applied to amplify constant envelope and outphasing signals. The outphasing power amplifier has been tested with the wideband code division multiple access signal (WCDMA) and the 900 MHz continuous wave (CW) signal. The proposed design is suitable for fully integrated power amplification on silicon.

Keywords

code division multiple access; power amplifiers; LDMOS transistor; continuous wave signal; current mode class D amplification technique; distributed active transformer; frequency 900 MHz; high efficiency impedance transformation; lossless power combining; outphasing power amplifier; outphasing signal; wideband code division multiple access signal; Impedance; Multiaccess communication; Power amplifiers; Power generation; Power transmission lines; Radio frequency; Transistors; Power amplifier; WCDMA; current mode class-D amplifier; outphasing; power combiner; transformer;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultra-Wideband (ICUWB), 2010 IEEE International Conference on

Conference_Location

Nanjing

Print_ISBN

978-1-4244-5305-4

Electronic_ISBN

978-1-4244-5306-1

Type

conf

DOI

10.1109/ICUWB.2010.5615555

Filename

5615555