Higher Order Geometrical Modeling and Higher Order Field/Current Modeling in FEM, MoM, and PO Simulations

Abstract

Higher-order, large-domain electromagnetic simulations are presented based on the finite element method (FEM), method of moments (MoM), and physical optics (PO). The simulations combine higher order geometrical modeling and higher order field/current modeling, which is referred to as double-higher-order modeling. The examples demonstrate that accurate and efficient FEM, MoM, and PO simulations require both higher-order geometrical flexibility for curvature modeling and higher-order basis functions for field/current modeling in the same method. It is optimal to have the geometrical orders and current/field approximation orders of the elements entirely independent from each other, so that the two sets of parameters can be combined independently in a double-higher-order model.

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Document Details

Document Type
Technical Report
Publication Date
Apr 23, 2004
Accession Number
ADA438781

Entities

People

  • Branislav M. Notaroš
  • Milan M. Ilic
  • Miroslav Djordjevic

Organizations

  • University of Massachusetts Dartmouth

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Abstracts
  • Accuracy
  • Boundaries
  • Chebyshev Polynomials
  • Computational Science
  • Current Density
  • Curvature
  • Errors
  • Finite Element Analysis
  • Frequency
  • Geometry
  • Hybrid Simulations
  • Method Of Moments
  • Polynomials
  • Radiation
  • Simulations
  • Two Dimensional

Readers

  • Computational Fluid Dynamics (CFD)
  • Electromagnetic Wave Scattering and Antenna Radiation Engineering