Broadband Doherty Power Amplifier via Real Frequency Technique

被引：170

作者：

Sun, Guolin ^{[1
]}

Jansen, Rolf H. ^{[1
]}

机构：

[1] Univ Aachen, Rhein Westfal TH Aachen, Chair Electromagnet Theory, D-52072 Aachen, Germany

来源：

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 2012年 / 60卷 / 01期

关键词：

Broadband; Doherty power amplifier; real frequency technique; systematic design procedure;

D O I：

10.1109/TMTT.2011.2175237

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

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.

引用

页码：99 / 111

页数：13

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