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A 2.7-kW, 29-MHz class-E/F/sub odd/ amplifier with a distributed active transformer

Jeon, Sanggeun and Rutledge, David B. (2005) A 2.7-kW, 29-MHz class-E/F/sub odd/ amplifier with a distributed active transformer. In: IEEE MTT-S International Microwave Symposium Digest, 2005. IEEE , pp. 1927-1930. ISBN 0780388461 http://resolver.caltech.edu/CaltechAUTHORS:JEOims05

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Abstract

A Class-E/Fodd high power amplifier (PA) using the distributed active transformer (DAT) is demonstrated at 29MHz. The DAT combines the output power from four VDMOS push-pull pairs. The zero voltage switching (ZVS) condition is investigated and modified for the Class-E/Fodd amplifier with a non-ideal output transformer. All lumped elements including the DAT and the transistor package are modeled and optimized to achieve the ZVS condition and the high drain efficiency. The PA exhibits 2.7kW output power with 79% drain efficiency and 18dB gain at 29MHz.


Item Type:Book Section
Additional Information:© Copyright 2005 IEEE. Reprinted with permission. The authors appreciate the support of the Lee Center for Advanced Networking. We also would like to thank S. Weinreb, K. Potter, and F. Wang for their helpful advice.
Subject Keywords:Class-E/F, Distributed active transformer, Power amplifiers, Switching amplifiers, Zero voltage switching
Record Number:CaltechAUTHORS:JEOims05
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:JEOims05
Alternative URL:http://dx.doi.org/10.1109/MWSYM.2005.1517115
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:1818
Collection:CaltechAUTHORS
Deposited By: Archive Administrator
Deposited On:19 Feb 2006
Last Modified:27 Dec 2012 20:23

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