Distortion evaluation of RF power amplifiers using dynamic deviation reduction based Volterra series

In this paper, we present a systematic way to evaluate nonlinear distortions induced by RF power amplifiers. This approach is derived from a previously-introduced dynamic deviation reduction based Volterra series, in which static nonlinearities and different orders of dynamic behavior can be separately identified. New figures of merit are introduced to evaluate the effects of different order dynamics upon the model accuracy and the performance of PA linearizers, which provides a judicious way to trade off between model complexity and model accuracy.