Wilkinson, A.J. and Everard, J.K.A. (2001) Transmission Line Load-Network Topology for Class E Power Amplifiers. IEEE Transactions on Microwave Theory and Techniques, 49 (6). pp. 1202-1210. ISSN 0018 9480
Abstract
Class-E amplifiers are a type of switching amplifier offering very high efficiency approaching 100%. In this paper, a topology and design methodology, which could be used for a transmission-line implementation of a class-E power amplifier, is presented. A simple transmission-line class-E load network is proposed that offers combined transformation of the load resistance down to a suitable level, as well as simultaneous suppression of harmonics in the load. The load network was developed and tested with the aid of a time-domain simulator (i.e., SPICE). A microstrip layout was designed and a first prototype was built operating at 1 GHz utilizing a field-effect transistor as the switching device. A drain efficiency of 72% was measured for our prototype after tuning, although better performance can be expected with an improved switching transistor and careful tuning of the load network
Metadata
Item Type: | Article |
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Authors/Creators: |
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Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Electronic Engineering (York) |
Depositing User: | York RAE Import |
Date Deposited: | 05 Aug 2009 10:13 |
Last Modified: | 05 Aug 2009 10:13 |
Published Version: | http://dx.doi.org/10.1109/22.925525 |
Status: | Published |
Publisher: | IEEE Institute of Electrical and Electronics |
Identification Number: | 10.1109/22.925525 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:6352 |