Title
L-band AlGaN/GaN Power Amplifier with Protection Against Load Mismatch
Author
van Heijningen, M.
van der Bent, G.
van der Houwen, E.H.
Chowdhary, A.
van Vliet, F.E.
Publication year
2013
Abstract
Solid-state power amplifiers need protection at the output to handle high reflections due to mismatch. Normally this is implemented by using a ferrite-based isolator. These are however large and bulky components. This paper presents a Gallium-Nitride power amplifier module with automatic protection against large reflections based on fold-back protection, by sensing the reflected power. Measurements have been performed on a 100 W L-band power amplifier module at full reflection (short at the output) without damage to the amplifier. The reaction time of the protection mechanism is less than 0.5 μs.
Subject
High Power Amplifiers
Gallium Nitride
MMICs
Defence Research
Defence, Safety and Security
Physics & Electronics
RT - Radar Technology
TS - Technical Sciences
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http://resolver.tudelft.nl/uuid:762cb705-42b0-45ee-8628-a747e657be7c
TNO identifier
489326
Publisher
EuMA, Louvain-la-Neuve
Source
European Microwave Week EuMW 2013, Proceedings of the 43rd European Microwave Conference, EuMC 2013, 7 - 10 October 2013, Nuremberg, Germany, 1379-1382
Bibliographical note
Also presented at: European Microwave Week EuMW 2013, Proceedings of the 8th European Microwave Integrated Circuits Conference, EuMIC 2013, 9 - 11 October 2013, Nuremberg, Germany
Document type
conference paper