Microwave Device Modeling Using Space-Mapping and Radial Basis Functions

A novel surrogate modeling methodology is presented that utilizes space mapping combined with radial basis function interpolation. The method has advantages both over the standard space mapping modeling methodology and the recently published space mapping modeling with variable weight coefficients. In particular, it provides accuracy comparable or better than the latter method and computational efficiency as good as the standard space mapping modeling procedure. Examples illustrating the performance of the new modeling method as well as a comparison with previously published approaches are given.