RF computations with the finite integration technique (FIT) and the coupled S-parameter calculation (CSC)

This paper starts with a very brief review of FIT on triangular grids. Next, it reports about some recent features in FIT to minimize the geometrical error while keeping the number of grid points as small as possible. Finally, a method is introduced to compute scattering properties and/or resonant fields in complex RF structures by combination of domain decomposition with any available CEM tool. We denote this method as coupled S-parameter calculation. Some examples are presented underlining the power of the methods described.