Title :
Analytical simplification of the 2-D method of moments impedance integral
Author :
Smith, Jerry R., Jr. ; Mirotznik, Mark S.
Author_Institution :
Carderock Div., Naval Surface Warfare Center, West Bethesda, MD, USA
Abstract :
The elements of the two-dimensional (2-D), method of moments (MoM) impedance matrix are analytically reduced by way of an integral transform. The resulting impedance expression is a single integral with an analytic integrand for nearly arbitary shape and weight function sets. The reduced expression requires fewer computations, thereby reducing the matrix fill time. This moments via integral transform method (MITM) is based on an integral representation of the Green´s function (Hankel function) and utilizes a special integral transform. The method is developed for 2-D perfectly electrically conducting bodies subjected to a transverse magnetic field. A comparison between brute force and MITM is presented for polynomial shape and weight functions.
Keywords :
Green´s function methods; conducting bodies; electromagnetic wave scattering; impedance matrix; method of moments; transforms; 2-D perfectly electrically conducting bodies; Greens function; MITM; MoM impedance matrix; electromagnetic scattering; method of moments; moments integral transform method; transverse magnetic field; Conductors; Function approximation; Impedance; Integral equations; Moment methods; Polynomials; Scattering; Shape; Transforms; Two dimensional displays; 65; Electromagnetic scattering; MoM; method of moments; transforms;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2004.835164