Analysis and Measurements of Three-Dimensional Arbitrarily-Shaped Dielectric Scatterers.

Abstract

Theoretical and experimental research was conducted to determine the electromagnetic scattering from heterogeneous dielectric bodies. The discrepancies in the literature regarding the singularity of the electric dyadic Green's functions were resolved. Compact range scattering measurements at 1 GHz were successfully performed. Extensive computations were made for a variety of dielectric scatterers, including a one-foot bird at 1 GHz. The agreements between measurements and computation were good except for the resonant sphere, for which the calculated resonant frequencies were shifted by about 20 percent. Various numerical techniques, to treat symmetrical scatterers, using symmetric matrices, banded matrices, and virtual memory were implemented in the Volume Integral Equation algorithm. (Author)

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1980
Accession Number
ADA089412

Entities

People

  • C. Papanicolopulos
  • J. J. H. Wang

Organizations

  • Georgia Tech

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms
  • Biomedical
  • Cyber

DTIC Thesaurus Topics

  • Accuracy
  • Air Force
  • Algorithms
  • Backscattering
  • Boundary Value Problems
  • Computers
  • Electromagnetic Fields
  • Electromagnetic Scattering
  • Equations
  • Frequency
  • Geometry
  • Integral Equations
  • Measurement
  • Numerical Analysis
  • Scattering
  • Simulations
  • Theorems

Readers

  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Microwave Engineering.
  • Plasma Physics / Magnetohydrodynamics