Software Optimization of a Supply Modulated GaN-Amplifier for Baseband Access ET Systems

A. Raemer, O. Bengtsson, and W. Heinrich

Published in:

7th German Microwave Conference (GeMiC 2012), Ilmenau, Germany, Mar. 12-14, paper 1570 (2012).

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Abstract:

A simulation based design procedure for supply modulated amplifiers is presented. With the developed designguide optimum transistor operation under supply modulation can be simulated with arbitrary modulation voltage functions at varying impedance conditions. Alternative supply voltage functions have been investigated for fixed impedance conditions and for an implemented class-F design.

Ferdinand-Braun-Institut, Leibniz-Institut für Höchstfrequenztechnik, Gustav-Kirchhoff-Straße 4, D-12489 Berlin, Germany

Index Terms:

RF-Power, Power amplifiers, envelope tracking, load-pull, GaN.