Title :
Line-Integral Approach to Computing Impedance Matrix Elements
Author :
Asvestas, John S. ; Bilow, Henry J.
Author_Institution :
NAVAIR, Patuxent River
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;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2007.905815
