Numerical analysis of arbitrarily shaped bodies modeled by surface patches
Abstract
The analysis of surfaces is considerably more complex than that of thinwire structures. Consequently, computer codes based on surface models tend to be more time consuming than wiregrid codes. The present investigation is concerned with three surfacepatch modeling techniques and their numerical results. The first method is a modified version of an earlier Magnetic Field Integral Equation (MFIE) algorithm reported by Wang (1978). The second method utilizes the reaction integral equation. The third method is an Electric Field Integral Equation (EFIE) algorithm for handling thinshell scatterers which cannot be dealt with by the MFIE code. Numerical testing and evaluation of a variety of geometries were carried out. In all three computer codes, planar triangular patches are used to model the surfaces. The EFIE approach appears to be the most promising.
 Publication:

IEEE Transactions on Microwave Theory Techniques
 Pub Date:
 August 1982
 DOI:
 10.1109/TMTT.1982.1131217
 Bibcode:
 1982ITMTT..30.1167W
 Keywords:

 Computerized Simulation;
 Electric Conductors;
 Electromagnetic Scattering;
 Integral Equations;
 Numerical Integration;
 Surface Geometry;
 Backscattering;
 Electric Fields;
 Magnetic Fields;
 Mathematical Models;
 Method Of Moments;
 Run Time (Computers);
 Scattering Cross Sections;
 Communications and Radar