Continuous harmonically tuned Class-B power amplifier: A closed form equation design approach

Konstantinos Mimis, Souheil Bensmida, Kevin A Morris, Joe P McGeehan

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

5 Citations (Scopus)

Abstract

This paper presents a set of closed form equations for the calculation of the impedances for the continuous harmonically tuned (HT) Class-B power amplifier (PA). These equations have been derived by assuming a “quartic” drain current rather than the usually assumed half-wave rectified sinusoidal wave current. The resulting impedances were verified in simulations using a proven, large-signal GaN transistor model at three frequencies (900MHz, 2.1GHz and 3.5GHz). Moreover, a PA was built and measured at 2.1GHz, based on a 10W GaN HEMT transistor, achieving a power added efficiency (PAE) of 72.8% at maximum output power confirming the proposed design approach.
Original languageEnglish
Title of host publicationMicrowave Symposium Digest (MTT), 2012 IEEE MTT-S International
Place of PublicationMontreal, QC, Canada
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages1
Number of pages3
DOIs
Publication statusPublished - Jun 2012

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    Mimis, K., Bensmida, S., Morris, K. A., & McGeehan, J. P. (2012). Continuous harmonically tuned Class-B power amplifier: A closed form equation design approach. In Microwave Symposium Digest (MTT), 2012 IEEE MTT-S International (pp. 1). Institute of Electrical and Electronics Engineers (IEEE). https://doi.org/10.1109/MWSYM.2012.6259578