MEMS-Based Reconfigurable Multi-band BiCMOS Power Amplifier

Abstract

This paper presents a small dual-band 0.9GHz/1.8GHz inverse class F power amplifier with load-switch functionality using a single BiCMOS amplifier line-up with a MEMS based reconfigurable matching network. The realized prototype measures 40mm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> , offers 31dBm with 40% efficiency at 0.9GHz and 30dBm with 34% at 1.8GHz. The load-switch provides up to 10% efficiency improvement at 0.9GHz for reduced power levels