Minimizing the Reflection of Electromagnetic Waves by Surface Impedance.

Abstract

In an empty halfspace a point source emits electromagnetic waves of fixed frequency and arbitrary polarization. The fields reflected by an imperfectly conducting plane, characterized by a constant, isotropic surface impedance, are determined by means of the geometrical optics approximation. An optimization method is used to compute the surface impedance, which minimizes a given function of the e.m. fields (e.g. the average energy density) at a given observation point. The properties of the functions to be minimized are studied and a set of numerical results is presented and discussed. Keywords: geometrical optics; control theory.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1986
Accession Number
ADA172585

Entities

People

  • G. Crosta
  • Genyu Chen
  • T. J. Bridges

Organizations

  • University of Wisconsin–Madison

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Algorithms
  • Computations
  • Control Theory
  • Differential Equations
  • Electric Fields
  • Electromagnetic Fields
  • Equations
  • Frequency
  • Magnetic Fields
  • Materials
  • Mathematics
  • Observation
  • Operations Research
  • Three Dimensional
  • Two Dimensional
  • United States
  • Wisconsin

Fields of Study

  • Physics

Readers

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