Electromagnetic Coupling to a Conducting Body of Revolution with a Homogeneous Material Region.

Abstract

A numerical solution for electromagnetic coupling to a perfectly conducting body of revolution with a loss-free homogeneous material region is developed. The material region is exposed by a rotationally symmetric aperture in the conducting body. Application of the equivalence principle introduces an unknown electric current on the surface of the conducting body, and both an unknown equivalent electric current and an unknown equivalent magnetic current in the aperture. These currents satisfy the integral equations obtained by annihilating the tangential components of the electric field on the surface of the conducting body and by enforcing continuity of the tangential components of the electric and magnetic fields across the aperture. These integral equations are solved numerically by means of the method of moments. Numerical results for the above mentioned currents are presented for four different conducting bodies, each of which has a dielectric region and is excited by an axially incident plane wave. The computer program that was used to calculate these currents allows for the more general case of oblique incidence. This program is described and listed along with sample input and output in a forthcoming report.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1981
Accession Number
ADA108395

Entities

People

  • Joseph R. Mautz
  • Roger F. Harrington

Organizations

  • Syracuse University

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms

DTIC Thesaurus Topics

  • Computer Programs
  • Computers
  • Continuity
  • Couplings
  • Dielectrics
  • Electric Current
  • Electric Fields
  • Electromagnetic Fields
  • Electromagnetic Radiation
  • Electromagnetic Scattering
  • Equations
  • Integral Equations
  • Integrals
  • Magnetic Fields
  • Materials
  • Method Of Moments
  • Plane Waves

Fields of Study

  • Physics

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering