A Comparison of Exact Versus Perturbed Pole Locations of Dielectric Objects in Dielectric Medium

Abstract

The dielectric properties of soils and plastic targets are given. The approach for finding exact pole locations from a dielectric infinite slab, a dielectric sphere, and a dielectric infinite cylinder is presented (and applied). The exact poles for the slab and sphere are found for various sizes and dielectric properties. There is a discussion (and use) of Carl E. Baum's perturbation formulas for dielectric slabs and spheres. George Hanson's results (formulas, from using Carl's same approach) are given (and used) for an infinite dielectric cylinder. The poles found from the perturbation formulas are compared with the exact poles and an "effective" region for using the perturbation formulas is established.

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Document Details

Document Type
Technical Report
Publication Date
Jul 03, 1997
Accession Number
ADA345504

Entities

People

  • Carl E. Baum
  • Mark C. Worthy

Tags

DTIC Thesaurus Topics

  • Bessel Functions
  • Coefficients
  • Current Density
  • Dielectric Permittivity
  • Dielectric Properties
  • Electromagnetism
  • Frequency
  • Magnetic Fields
  • Military Personnel
  • Munitions
  • Perturbations
  • Resonant Frequency
  • Scattering
  • Spheres
  • Unexploded Ammunition
  • Waveforms
  • Waves

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering