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A novel highly efficient broadband continuous class-F RFPA delivering 74% average efficiency for an octave bandwidth

Carrubba, Vincenzo, Lees, Jonathan, Benedikt, Johannes, Tasker, Paul J. and Cripps, Stephen Charles 2011. A novel highly efficient broadband continuous class-F RFPA delivering 74% average efficiency for an octave bandwidth. Presented at: 2011 IEEE/MTT-S International Microwave Symposium, Baltimore, MD, USA, 5-10 June 2011. 2011 IEEE/MTT-S International Microwave Symposium - MTT 2011. New York: IEEE, pp. 350-353. 10.1109/MWSYM.2011.5972701

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Abstract

A novel, highly efficient and broadband RF power amplifier (PA) operating in “continuous class-F” mode has been realized for first time. The introduction and experimental verification of this new PA mode demonstrates that it is possible to maintain expected output performance, both in terms of efficiency and power, over a very wide bandwidth. Using recently established continuous class-F theory, an output matching network was designed to terminate the first three harmonic impedances. This resulted in a PA delivering an average drain efficiency of 74% and average output power of 10.5 W for an octave bandwidth between 0.55 GHz and 1.1 GHz. A commercially available 10 W GaN HEMT transistor has been used for the PA design and realization.

Item Type: Conference or Workshop Item (Paper)
Date Type: Publication
Status: Published
Schools: Engineering
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Uncontrolled Keywords: Microwave measurements; microwave theory and techniques; power amplifiers; power transistors; wideband
Publisher: IEEE
ISBN: 9781612847542
Last Modified: 09 Jan 2018 22:50
URI: http://orca.cf.ac.uk/id/eprint/15579

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