Behavioral model of solid state power amplifiers (SSPAs) for agile antennas application

Abstract

The complexity of modern telecommunication systems requires increasingly important needs for modeling and rigorous analysis. Thus, it is more and more required to predict the performances of power amplifiers (PAs) on the Tx-Rx chains. This paper focuses on behavioral modeling approach for a PAs used in agile antennas application. This approach of active antennas can take into account the interactions between the nonlinear circuits (i.e. PAs) and electromagnetic (i.e. antennas): the matching impedances for each antenna of a specified array are calculated from rigorous electromagnetic analysis, then those calculated matching impedances are used instead of the real antennas to define the load impedances (Zload) of the active circuits (PAs), in order to optimize the overall performances.