Hybrid dynamic-static finite-difference approach for MMIC design

The efficiency of the Finite-Difference method is improved by combining the full-wave analysis with a quasi-static approach: those regions of a structure which require a spatial resolution far below the wavelength are described by a quasi-static analysis. As a consequence, the mesh size of the dynamic problem and hence the numerical efforts can be reduced significantly. The savings are particularly high for miniaturized geometries such as used in coplanar MMIC geometries.