GaN non-uniform distributed power amplifier MMICs — The highs and lows (Invited)

Abstract

In this paper the non-uniform distributed power amplifier (NDPA) architecture is reviewed. Analysis of the structure highlights some of issues and limitations one encounters when utilizing this topology for the monolithic implementation of wideband power amplifiers. Existing techniques for mitigating these issues are then discussed along with published benchmarks for NDPA MMICs that demonstrate the approach.