Wideband frequency analysis using volume surface integral equation and taylor series expansion

This paper present a Galerkin-type method of moments (MoM) solution of volume surface integral equation (VSIE) and Taylor series expansion (TSE). This VSIE-TSE scheme is developed for the wideband frequency analysis of composite metallic and dielectric (CMD) structures. By expanding the exponential of the Green's function into a Taylor series, the impedance matrices can be efficiently calculated and generated, when the frequency sweeping process. In comparison with the conventional VSIE method, our scheme requires much less computational time while the accuracy remains at the same level. Several numerical examples are presented to demonstrate the accuracy and efficiency of the VSIE-TSE scheme.