Mixed-Order Finite Elements for the Solution of Three-Dimensional Electromagnetic Fields.

Abstract

A new method of modeling electromagnetic waves by the finite element method is presented. The method is based on a numerical formulation in which different orders of polynomials are used to approximate the three different components of either the electric or the magnetic field vectors. It provides a reliable procedure for the finite element solution of three-dimensional electromagnetic field problems. Heretofore, such solutions were plagued by the presence of spurious modes. The new method is applied to the analysis of fields in resonant electromagnetic cavities. Keywords: Bistatic scattering; Finite element analysis; Cloning; Measurements.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1986
Accession Number
ADA164786

Entities

People

  • D. Hudak
  • Dachun Sun
  • Z. J. Cendes

Organizations

  • Carnegie Mellon University

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Air Force
  • Classification
  • Computational Fluid Dynamics
  • Computational Science
  • Eigenvalues
  • Electric Fields
  • Electromagnetic Fields
  • Electromagnetic Wave Propagation
  • Equations
  • Finite Element Analysis
  • Helmholtz Equations
  • Magnetic Fields
  • Scattering
  • Three Dimensional
  • Two Dimensional
  • Wave Equations
  • Wave Propagation

Fields of Study

  • Physics

Readers

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