In this paper, an efficient volume surface integral equation (VSIE) method with nonconformal discretization is developed for the analysis of electromagnetic scattering from composite metallic and dielectric (CMD) structures. This VSIE scheme utilizes curved tetrahedral (triangular) elements for volume (surface) modeling and the associated CRWG (CSWG) basis functions for volume current (surface) current modeling. Further, a discontinuous Galerkin (DG) volume integral equation (VIE) method and a DG surface integral equation (SIE) approach are adopted for dielectric and metallic parts, respectively, which allow both conformal and nonconformal volume/surface discretization improving meshing flexibility considerably. Numerical results are provided to demonstrate the accuracy, efficiency, and flexibility of our scheme.
Y. Zhu et al., "Discontinuous Galerkin vs. IE Method for Electromagnetic Scattering from Composite Metallic and Dielectric Structures," Progress In Electromagnetics Research M, vol. 84, pp. 197-209, Electromagnetics Academy, Sep 2019.
The definitive version is available at https://doi.org/10.2528/PIERM19060701
Electrical and Computer Engineering
Electromagnetic Compatibility (EMC) Laboratory
Keywords and Phrases
Dielectric Materials; Electromagnetic Wave Scattering; Integral Equations, Current Modeling; Dielectric Structure; Discontinuous Galerkin; Electromagnetic Scattering; Numerical Results; Surface Integral Equations; Volume Integral Equation; Volume Surface Integral Equations, Galerkin Methods
International Standard Serial Number (ISSN)
Article - Journal
© 2019 Electromagnetics Academy, All rights reserved.
01 Sep 2019