High-Accuracy Bias Control Software for Doherty RF Power Amplifiers

Author

Zhang, Juan ; Liu, Taijun ; Ye, Yan ; Xu, Gaoming ; Li, Liang

Author_Institution

Coll. of Inf. Sci. & Eng., Ningbo Univ., Ningbo, China

fYear

2011

Firstpage

1

Lastpage

4

Abstract

How to accurately control the gate bias voltage of a Doherty RF power amplifier is an important problem that has to be resolved for developing high efficiency RF power amplifiers. This paper proposes a digital bias solution to obtain adjustable accurate bias voltage, and discusses the implementation procedure of high-accuracy bias voltage control software for Doherty RF power amplifiers in detail. The software can not only precisely adjust the bias voltage of a PA to determine the optimal bias point of the PA, but also can be used to build an automatic optimization and debugging system for the power amplifier so as to reduce the fabrication costs of debugging and testing power amplifiers.

Keywords

control engineering computing; electronic engineering computing; power amplifiers; radiofrequency amplifiers; voltage control; Doherty RF power amplifiers; PA optimal bias point; automatic optimization; debugging system; digital bias solution; fabrication cost reduction; gate bias voltage control; high-accuracy bias control software; power amplifier testing; Graphical user interfaces; Power amplifiers; Radio frequency; Software; Universal Serial Bus; Voltage control; Voltage measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications, Networking and Mobile Computing (WiCOM), 2011 7th International Conference on

Conference_Location

Wuhan

ISSN

2161-9646

Print_ISBN

978-1-4244-6250-6

Type

conf

DOI

10.1109/wicom.2011.6040611

Filename

6040611