RF power amplifier design applied to acoustic optical modulator

Abstract

This paper proposes a novel procedure of designing a power amplifier with broadband and high linearity, which is applied to acoustic optical modulator. Firstly, a transistor should be suitably chosen, here we accomplish the direct current (DC) simulation in order to get the right quiescent operating point under the platform Advanced Design System 2009 (ADS). Then some stability simulations and measurements were taken to make sure that the amplifier can be unconditionally stable. Finally, we carried out the load pull and source pull simulations to obtain the load and source impedances required, while executing the Harmonic Balance (HB) simulations to verify our design.