Analysis of class-E based RF power amplifiers using harmonic modeling

Authors:
Seshadri Sivakumar;Abdullah Eroglu
Affiliations:
Minn Energy Innovations, Halifax, NS, Canada and MKS Instruments Ltd., Rochester, NY;Engineering Department, Indiana University-Purdue University at Fort Wayne, Fort Wayne, IN and MKS Instruments Ltd., Rochester, NY
Venue:
IEEE Transactions on Circuits and Systems Part I: Regular Papers
Year:
2010

Citing 2
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RF Power Amplifiers for Wireless Communications, Second Edition (Artech House Microwave Library (Hardcover))

RF Power Amplifiers for Wireless Communications, Second Edition (Artech House Microwave Library (Hardcover))
Load-Pull Analysis of Outphasing Class-E Power Amplifier

AUSWIRELESS '07 Proceedings of the The 2nd International Conference on Wireless Broadband and Ultra Wideband Communications

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Abstract

An analysis of the Class-E power amplifier is given using harmonic modeling that facilitates its characterization for a wide load-space regime expected in applications such as RF plasma generation for semiconductor manufacturing. Using a hybrid matrix-framework made up of the dominant harmonics of the circuit variables aided by the time-domain boundary conditions of the power switch voltage waveform, a quasi-linear algorithm is developed to accurately determine the voltage and the current levels expected on all components of the power amplifier for arbitrary loading and operating conditions. The application of the algorithm for design optimization is discussed, and its extension to phase-controlled Class-E power amplifier pairs is described.