Broadband push-pull power amplifier design at microwave frequencies

Smith, R. M. H. and Cripps, Stephen Charles ORCID: https://orcid.org/0000-0002-2258-951X 2017. Broadband push-pull power amplifier design at microwave frequencies. Presented at: 2016 46th European Microwave Conference (EuMC), 4-6 October 2016. 2016 46th European Microwave Conference (EuMC). IEEE, pp. 1353-1356. 10.1109/EuMC.2016.7824603

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Abstract

A broadband, high efficiency push-pull power amplifier is presented between 0.5 GHz and 1.5 GHz. Coaxial cable transmission line baluns are utilised to transform the impedance environment of the transistors down to 25 Ω, greatly simplifying the matching, whilst still providing a 50 Ω environment to interface with other components. Using packaged GaN HEMT transistors, typical output powers of 45 dBm and efficiencies of 44% to 75% have been measured across a 3:1 bandwidth. The small signal input match is less than -10 dB and small signal gain is greater than 10 dB across the entire band.

Item Type:	Conference or Workshop Item (Paper)
Date Type:	Publication
Status:	Published
Schools:	Engineering
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering
Publisher:	IEEE
ISBN:	978-2-87487-043-9
Last Modified:	21 Oct 2022 07:03
URI:	https://orca.cardiff.ac.uk/id/eprint/99047

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