Microwave Class-F Power Amplifier Design Including Input Harmonic Terminations

S. Gao, P. Butterworth, S. Ooi, A. Sambell

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)


In this paper, we present the design of a high-efficiency Class-F power amplifier in pHEMT technology using a novel load-pull/source-pull simulation-based approach. The 2nd harmonic input termination is shown to have a critical influence on PA performances, which is justified by the shape of the simulated waveforms. Experimental validation is carried out on a 2 GHz practical circuit using a medium-power packaged device. Two cases are compared both theoretically and experimentally: for the best and worst case 2nd harmonic input terminations, 76% and 42% saturated PAE are measured, respectively. The worst case termination degrades the saturated C/I3 by 7.5 dB.

Original languageEnglish
Title of host publicationAsia-Pacific Microwave Conference Proceedings 2005
Subtitle of host publicationAPMC 2005
PublisherIEEE Industrial Electronics Society
Number of pages4
ISBN (Print)078039433X, 9780780394339
Publication statusPublished - 20 Mar 2006
Externally publishedYes
EventAsia-Pacific Microwave Conference 2005 - Suzhou, China
Duration: 4 Dec 20057 Dec 2005

Publication series

NameAsia-Pacific Microwave Conference Proceedings, APMC
ISSN (Print)2165-4727
ISSN (Electronic)2165-4743


ConferenceAsia-Pacific Microwave Conference 2005
Abbreviated titleAPMC 2005

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