Design & Simulation of Radio Frequency Power Amplifiers for High Efficiency and with out affecting Linearity

Abstract

The purpose of this work is to study and to observe the two important characteristics of Radio Frequency Power Amplifiers, i.e. efficiency and linearity. To provide maximum efficiency, A standard design Procedure is developed and simulated by using Micro Wave Office (Antenna Design Software). Then the Class F Amplifier is designed to Increase the efficiency and simulated by using AWR MWO. The structure of Doherty Amplifier is introduced to enhance the efficiency without affecting and maintaining the Linearity. The design deals with the Auxiliary device and this device simplifies the circuit. It is able to provide the back-off efficiency and at the same time maintains the linearity.