Volume Integral Equations Applied to Circular and Square Cylinders

Abstract

Three numerical integration methods are developed and used for evaluating the highly singular dyadic Green's function in the volume integral equations for scattering from dielectric cylinders. Numerical results indicate that for small permittivities or relatively small dielectric cylinders, the methods are quite efficient and give comparable accuracy. However, when both the relative permittivity and the size of the cylinder are increased, we experienced problems similar to those encountered by a number of previous researchers, namely, the results converge slowly for the TE polarization.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1992
Accession Number
ADA266635

Entities

People

  • Rose W. Wang

Tags

DTIC Thesaurus Topics

  • Accuracy
  • Cell Size
  • Charge Density
  • Dielectric Permittivity
  • Dielectric Properties
  • Dielectrics
  • Electric Fields
  • Electromagnetic Scattering
  • Equations
  • Forward Scattering
  • Integral Equations
  • Integrals
  • Mainframe Computers
  • Polarization
  • Scattering
  • Three Dimensional
  • Two Dimensional

Fields of Study

  • Mathematics

Readers

  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Microwave Engineering.
  • Structural Dynamics.