Title :
A meshless scheme for solving volume integral equations with inhomogeneous media
Author :
Yang, K. ; Tong, M.S.
Author_Institution :
Dept. of Electron. Sci. & Technol., Tongji Univ., Shanghai, China
Abstract :
The solutions of Volume integral equations (VIEs) rely on the discretization of volumetric domains which is usually tedious. Also, the method of moments (MoM) with the the Schaubert-Wilton-Glisson (SWG) basis function does not allow a discontinuous inhomogeneity of material in tetrahedral elements and has to assume a homogeneous material in each tetrahedron for continuously inhomogeneous media. We propose a novel meshless scheme which can avoid the problems in the MoM based on the Green-Gauss theorem for solving the VIEs with inhomogeneous media. Numerical examples for EM scattering by inhomogeneous objects are presented to illustrate the scheme.
Keywords :
electromagnetic wave scattering; inhomogeneous media; integral equations; method of moments; EM scattering; Green-Gauss theorem; MoM; SWG basis function; Schaubert-Wilton-Glisson basis function; VIE; continuously inhomogeneous media; homogeneous material; inhomogeneous objects; meshless scheme; method of moments; tetrahedral elements; volume integral equations; volumetric domain discretization; Dielectrics; Integral equations; Least squares approximation; Moment methods; Nonhomogeneous media; Scattering;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2012 IEEE
Conference_Location :
Chicago, IL
Print_ISBN :
978-1-4673-0461-0
DOI :
10.1109/APS.2012.6348562
