Feasibility study on complexity coefficient simplification of behavior model

The poly harmonic distortion(PHD) model, such as Cardiff model, has good nonlinear characterization ability and industrial application prospect. However, the prediction accuracy and complexity of PHD model are largely dependent on the coefficients selected by the users. This paper systematically studies the possibility of simplifying nonlinear behavior model, and speeding the model extraction process with practical measurement data on a GaN HEMT device. This approach will help the extraction of accurate and practical behavior model.