Electromagnetic Transmission through an Annular Aperture in an Infinite Conducting Screen.

Abstract

Electromagnetic transmission through an annular aperture in an infinite conducting screen of zero thickness is investigated. The circular aperture is included as a special case. The fields on both sides of the screen are obtained from the free space Green's function by means of the equivalence principle and image theory. An integral equation for the equivalent magnetic current in the aperture is established by enforcing the continuity of the tangential components of both the electric and the magnetic field. This integral equation is solved by the method of moments to obtain the magnetic current, from which other transmission characteristics are obtained. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1979
Accession Number
ADA074831

Entities

People

  • Chung-chi Cha
  • Roger F. Harrington

Organizations

  • Syracuse University

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms

DTIC Thesaurus Topics

  • Angle Of Incidence
  • Coefficients
  • Computer Programs
  • Computers
  • Electric Fields
  • Electromagnetic Fields
  • Equations
  • Excitation
  • Gain
  • Integral Equations
  • Integrals
  • Magnetic Fields
  • Method Of Moments
  • Plane Waves
  • Power Gain
  • Procedures (Computers)
  • Radiation

Fields of Study

  • Physics

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering

Technology Areas

  • Space
  • Space - Hall-Effect Thruster
  • Space - Space Objects