Power amplifier design based on nonlinear embedding models with design examples

Abstract

The chapter begins by discussing the motivations for starting power amplifier (PA) design at the current-source reference planes. Next, the technique of nonlinear embedding which bypasses the need for fundamental and harmonic source and loadpull simulations is considered. Simulation and measurement results for Class-B are presented together with the concept of optimal harmonic injection. The Chapter goes on to analyze Class-F, and design examples are provided. Applications to Doherty and Chireix Pas are then presented, and the Chapter concludes by presenting the designs of broadband Pas with the continuous Classes B/J and F.