Padé-approximation-based behavioral modeling

A new nonlinear black-box, frequency-domain model is presented in this paper, based on the Padé approximation theory. The Padé model is similar in concept to the X-parameter model. Comparisons between the ADS X-parameter model and the Padé model are presented here. Based on the simulation results, it is shown that the new Padé nonlinear model has generally better accuracy than the X-parameter model without introducing any additional complexity.