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A Modular Hybrid Switching Amplifier for Wide-Bandwidth Supply-Modulated RF Power Amplifiers
University of Gävle.
Ferdinand-Braun-Institut (FBH), Leibniz-Institut für Höchstfrequenztechnik.
KTH, School of Electrical Engineering (EES), Signal Processing. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.
Ferdinand-Braun-Institut (FBH), Leibniz-Institut für Höchstfrequenztechnik.
2012 (English)In: Proceedings of the German Microwave Conference, 2012Conference paper, Published paper (Refereed)
Abstract [en]

A modular hybrid switching amplifier (HSA) for wide-bandwidth supply modulation of RF power amplifiers is presented. The HSA is designed for maximum 15 V supply voltage, 1 A supply current and 10 MHz bandwidth. The purpose is to compare alternative switch technologies. A case study is conducted on GaN-HEMT and Si-MOSFET, which are compared with regards to efficiency and linearity under different load conditions, based on simulations and on measurements of the fabricated designs. Design modifications to accommodate the alternative switch technologies are presented together with analysis of non-linearities including slew-rate induced amplitude distortion.

Place, publisher, year, edition, pages
2012.
National Category
Telecommunications
Identifiers
URN: urn:nbn:se:kth:diva-67481ISBN: 978-398126684-9 (print)OAI: oai:DiVA.org:kth-67481DiVA: diva2:485023
Conference
2012 the 7th German Microwave Conference, GeMiC 2012, Ilmenau, 12-14 March 2012
Available from: 2012-01-27 Created: 2012-01-27 Last updated: 2012-12-12Bibliographically approved

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