New Output Network Design Approach for Voltage-Mode Class-S PAs
D. Al-Mozani, A. Wentzel, and W. Heinrich
Published in:
9th German Microwave Conference (GeMiC 2015), Nürnberg, Germany, Mar. 16-18, ISBN 978-3-9812668-6-3, pp. 9-12 (2015).
Abstract:
This paper presents a new approach for realizing the output network of class-S power amplifiers in the 900MHz band. The idea is to use bond-wires instead of lumped inductors thus improving Q factor and broadband impedance termination at the output of the switching stage. A filter made of bond-wires and planar capacitor was designed and fabricated. Measurements were also performed in a class-S PA module and compared to the convention. Measurements of the proposed network were performed and compared with filter solution using SMD elements.
Ferdinand-Braun-Institut, Leibniz-Institut für Höchstfrequenztechnik, Gustav-Kirchhoff-Straße 4, 12489 Berlin, Germany
Keywords:
power amplifier; class-S; voltage mode; GaN; HEMT; band-pass delta-sigma modulation; bond-wire output network.
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