Digital Predistorter Model for High Power Amplifier For Nonlinearity Challenges

Nonlinearity is a major problem in High Power Amplifier (HP A), which results due to the limited physical structure of the HP A manufacturing design. This limitation effects the transmitted signal in amplitude and Phase. This paper address this challenge via designing a digital predistorter (DPD) model which can handle the mentioned challenge. The proposed DPD model estimates (predicted) the reverse error to deals with the nonlinearity effect. The results of the simulated model present a superior performance over other methods, a comparisons via different metrics is presentd.