Diffraction Computation by Means of the Method of Equivalent Currents

Abstract

In this report the derivation of the Method of Equivalent Currents is given. This method can be used to compute the diffraction of plane waves by edges. A computation of this sort is necessary in addition to a scattering computation using Physical Optics or Geometrical Optics, because these last techniques neglect edge effects by definition. The reason that the Method of Equivalent Currents is chosen is because it is a powerful method, valid at almost all incidence and scattering aspects. Some of the few remaining singularities of the method can be removed in a way described in this report as well. Some interesting comparisons with measured data will be given in order to show the capabilities and shortcomings of the method. Radar cross section, Diffraction, Mathematical model, Method of equivalent currents

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1994
Accession Number
ADA285347

Entities

People

  • L. J. Van Ewijk

Organizations

  • Netherlands Organisation for Applied Scientific Research

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Complex Numbers
  • Computations
  • Computer Programs
  • Computers
  • Contour Integrals
  • Diffraction
  • Electric Fields
  • Electromagnetic Fields
  • Electronics Laboratories
  • Frequency
  • Linear Polarization
  • Magnetic Fields
  • Physics
  • Radar Cross Sections
  • Radiation
  • Scattering
  • Waves

Readers

  • Graph Algorithms and Convex Optimization.
  • Materials Science and Engineering.
  • Systems Analysis and Design