High Efficiency Class-F Power Amplifier Design

Shirt Fun Ooi, Steven Gao, A. Sambell, D. Smith, P. Butterworth

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

6 Citations (Scopus)


In this paper, a high efficiency, low voltage, class-F Power Amplifier (PA) is described. The effect of different output harmonic terminations on the Power-Added Efficiency (PAE) of the PA has also been analysed. A medium power PHEMT PA operating at 900MHz is designed and measured. A peak PAE of 71.4% with 22dBm output power (Pout) and 14dB power gain (Gp) is achieved at a very low drain voltage (Vds) of 3V. A PAE above 60% has been achieved over a bandwidth of 13%.

Original languageEnglish
Title of host publicationHigh Frequency Postgraduate Student Colloquium, 2004 Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages6
ISBN (Print)0780384261
Publication statusPublished - 30 Nov 2004
Externally publishedYes
Event2004 High Frequency Postgraduate Student Colloquium - Manchester, United Kingdom
Duration: 6 Sep 20047 Sep 2004

Publication series

NameHigh Frequency Postgraduate Student Colloquium
ISSN (Print)1546-6523
ISSN (Electronic)1558-4607


Conference2004 High Frequency Postgraduate Student Colloquium
Country/TerritoryUnited Kingdom

Cite this