An Iteration Method for Complex Scattering Problems.

Abstract

An iteration method for solving an integral representation of Maxwell's equation is presented. In this method, the scattering body is divided into lit and shadow side regions separated by the geometric optics boundary. The total current at any point on the surface of the scatter, induced by an incident field, is the sum of an approximate optics current and a correction current. Both of these currents are computed by iteration. The general theory is presented and applied to the problem of scattering from a two-dimensional square cylinder. The results are compared with the method of moments and excellent agreement is obtained. Due to its structure, the iteration method, unlike the method of moments, does not give spurious results at internal resonances of the scatter. The method is applicable to complex structures and can be used for non-perfect conductors. Originator-supplied keywords include: Scattering, Numerical Electromagnetics, and Diffraction.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1984
Accession Number
ADA150038

Entities

People

  • G. A. Thiele
  • M. Kaye
  • P. K. Murthy

Organizations

  • University of Dayton

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Agreements
  • Air Force
  • Boundaries
  • Classification
  • Computer Programs
  • Diffraction
  • Electromagnetic Fields
  • Equations
  • Geometry
  • Integral Equations
  • Integrals
  • Magnetic Fields
  • Method Of Moments
  • Refractive Index
  • Scattering
  • Security
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Calculus or Mathematical Analysis
  • Electromagnetic Wave Scattering and Antenna Radiation Engineering