Hybrid nonlinear model for microwave active devices using kriging

This paper presents a hybrid empirical-behavioral model applied to microwave active devices. The empirical part ensures meaningful, physical response over a wide range of variables, while the behavioral part boosts the accuracy in the particular region of interest. A simple Kriging with zero mean value is employed as the behavioral model. Such hybrid model outperforms the sole empirical model and a hybrid with radial-basis-functions model both in interpolation performance and lower extraction time. The extrapolation capabilities of the model are maintained.