Application of an hp-Adaptive FE Method for Computing Electromagnetic Scattering in the Frequency Domain

Abstract

Herein the electromagnetic scattering is determined using the Finite Element Method. In particular the radar cross section of the scatterer is estimated. Comparison between the Finite Element Method (FEM), Method of Moments (MoM) and the method of Physical Optics (PO) is made in one numerical example. In another numerical example, the convergence rate is compared using pure h-refinement, p-enrichment and with a priori hp-adaptive refinements. The gain using the hp-adaptive approach is significant since an exponential convergence may be obtained.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2005
Accession Number
ADA447103

Entities

People

  • A. Zdunek
  • N. Sehlstedt
  • W. Rachowicz

Organizations

  • Swedish Defence Research Agency

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Abstracts
  • Asymptotic Series
  • Boundaries
  • Convergence
  • Dielectric Permittivity
  • Electric Fields
  • Electromagnetic Scattering
  • Far Field
  • Finite Element Analysis
  • Frequency
  • Frequency Domain
  • Magnetic Fields
  • Near Field
  • Polarization
  • Radar Cross Sections
  • Scattering
  • Sequences

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)