Numerical Methods for Scattering from Electrically Large Objects

摘要

A new and computationally very efficient integral equation numerical method forcomputing electromagnetic scattering and Radar Cross Section (RCS) was developed. A theory of higher order impedance boundary conditions was derived to handle single and multiple dielectric coatings around conductors. The method was tested in two dimensions using a 14,000-line FORTRAN program and was found to be very promising for electrically large objects. Initial ideas for extensions to three dimensions were explored. Treatments of trailing edge and corner singularities were developed.