Generalized Power Series Analysis of Intermodulation Distortion in a MESFET Amplifier Simulation and Experiment

Design of microwave integrated circuits requires accurate simulation tools capable of predicting a variety of nonlinear distortion effects including gain compression and intermodulation distortion. This paper uses the recently developed generalized power series analysis to simulate a MESFET amplifier. For the first time, the simulations are compared to experimental results for single-tone and two-tone inputs. Good agreement is seen. This analysis is suited to any complex analog circuits having arbitrary input frequency spacing.