DocumentCode
1379979
Title
Broadband Doherty Power Amplifier via Real Frequency Technique
Author
Sun, Guolin ; Jansen, Rolf H.
Author_Institution
Dept. of Electromagn. Theor., RWTH Aachen Univ., Aachen, Germany
Volume
60
Issue
1
fYear
2012
Firstpage
99
Lastpage
111
Abstract
A comprehensive method of designing a broadband Doherty power amplifier is presented in this paper. The essential limitations of bandwidth extension of a Doherty power amplifier are discussed based on the proposed structure of the Doherty power amplifier, which also takes the output matching networks of both sub-amplifiers into account. The broadband matching is realized by applying the simplified real frequency technique with the desired frequency-dependent optimum impedances. GaN transistors were selected to implement the circuit structure.
Keywords
power amplifiers; wideband amplifiers; broadband Doherty power amplifier; broadband matching; circuit structure; frequency-dependent optimum impedance; output matching networks; real frequency technique; transistors; Broadband amplifiers; Frequency modulation; Impedance; Inverters; Optimization; Transistors; Broadband; Doherty power amplifier; real frequency technique; systematic design procedure;
fLanguage
English
Journal_Title
Microwave Theory and Techniques, IEEE Transactions on
Publisher
ieee
ISSN
0018-9480
Type
jour
DOI
10.1109/TMTT.2011.2175237
Filename
6084840
Link To Document