In this paper a detailed mathematical procedure is described to evaluate modal scattering parameters conventionally defined in planar multilayered structures excited by wave ports. Combined Field Integral Equation technique is implemented and solved using method of moments. The developed formulation then is successfully applied to analyze waveguide structures and proved to be very efficient in the term of accuracy and performance.
Tilo Schwalger, Valentin Marc Schmutz, Eva Löcherbach