An Analysis of the Spectral Iterative Technique for Electromagnetic Scattering from Individual and Periodic Structures

Abstract

It is shown that the discrete system solved by the Spectral Iterative Technique (SIT) is of Toeplitz or block Toeplitz form, and thus may be more amenable to direct solution in certain cases. In addition, the discrete system associated with the SIT is shown to be equivalent to a moment method matrix equation, with basis and testing functions chosen implicitly in the process. Thus, there is no additional generality in the SIT type of approach compared to the conventional method of moments. These statements concern the discretization procedure used within the SIT, and apply whether the SIT is implemented in its original form or in connection with the conjugate gradient method. Simple examples of scattering from a single strip and from a periodic array of strips are used to illustrate the concepts. (JHD)

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1986
Accession Number
ADA220310

Entities

People

  • A. F. Peterson

Organizations

  • University of Illinois Urbana–Champaign

Tags

Communities of Interest

  • Air Platforms
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Computers
  • Delta Functions
  • Discrete Fourier Transforms
  • Electromagnetic Scattering
  • Engineering
  • Equations
  • Fast Fourier Transforms
  • Fourier Transformation
  • Frequency
  • Geometry
  • Integral Equations
  • Integral Transforms
  • Integrals
  • Method Of Moments
  • Periodic Functions
  • Plane Waves
  • Scattering

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