A Higher-Order Solution of Volume Integral Equation for Electromagnetic Scattering From Inhomogeneous Objects

Author

Shifei Tao ; Rushan Chen

Author_Institution

Dept. of Commun. Eng., Nanjing Univ. of Sci. & Technol., Nanjing, China

Volume

13

fYear

2014

fDate

2014

Firstpage

627

Lastpage

630

Abstract

A higher-order solution of volume integral equation is proposed for the analysis of electromagnetic (EM) scattering from inhomogeneous objects. The higher-order basis functions used in this solution are defined in curvilinear tetrahedron elements, in which the Lagrange interpolation polynomials are utilized to construct the basis functions for representing the unknown volume electric current density. The proposed higher-order solution is implemented with point matching for the method of moments (MoM) of the volume electric field integral equation (VEFIE). Several numerical examples are presented to validate the higher-order convergence and great efficiency to analyze the electromagnetic scattering from inhomogeneous objects.

Keywords

electric field integral equations; electromagnetic wave scattering; interpolation; method of moments; EM scattering; Lagrange interpolation polynomials; MoM; VEFIE; curvilinear tetrahedron elements; electromagnetic scattering; higher-order basis functions; higher-order solution; method of moments; unknown volume electric current density; volume electric field integral equation; Dielectrics; Electromagnetic scattering; Integral equations; Interpolation; Nonhomogeneous media; Polynomials; Vectors; Higher-order solution; inhomogeneous objects; volume integral equation;

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2014.2312736

Filename

6775288