Line-Integral Approach to Computing Impedance Matrix Elements

Author

Asvestas, John S. ; Bilow, Henry J.

Author_Institution

NAVAIR, Patuxent River

Volume

55

Issue

10

fYear

2007

Firstpage

2767

Lastpage

2772

Abstract

We present a line-integral approach for computing the impedance-matrix elements in the traditional Rao-Wilton-Glisson formulation of the moment method for electromagnetic problems. The line integral extends over the perimeter of a triangle and can be computed numerically using a Gauss-Legendre quadrature. We present the conversion of the surface integral to a line integral, and we perform calculations where we compare the present method to a surface quadrature approach.

Keywords

boundary integral equations; computational electromagnetics; impedance matrix; method of moments; Gauss-Legendre quadrature; Rao-Wilton-Glisson formulation; electromagnetic problems; impedance matrix elements; line-integral approach; moment method; surface integral; surface quadrature approach; Arithmetic; Bibliographies; Gaussian processes; Integral equations; Moment methods; Radar antennas; Surface impedance; Testing; Transmission line matrix methods; Vectors; Boundary-integral equations; Gordon–Bilow transformation (GBT); Green´s theorem; impedance-matrix calculation; method of moments; numerical integration;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.2007.905815

Filename

4339554