Automatic Localized Nonconformal Mesh Refinement for Surface Integral Equations

Jorge A.Tobon Vasquez, Zhen Peng, Jin Fa Lee, Giuseppe Vecchi, Francesca Vipiana

Research output: Contribution to journalArticle

Abstract

We propose an automatic, solution based, localized meshing refinement for increasing the accuracy of integral-equation solution for multi-scale electromagnetic problems. The procedure starts with a local measure of the boundary condition error, via testing on zero-order basis functions defined on the finest level mesh. Then, the adaptive mesh refinement (h-refinement) is obtained by nonconformal submeshing with Discontinuous Galerkin formulation in order to achieve the desired accuracy. Numerical experiments show the effectiveness of the approach in the cases of cubic geometry and realistic multi-scale structures.

Original languageEnglish (US)
Article number8859628
Pages (from-to)967-975
Number of pages9
JournalIEEE Transactions on Antennas and Propagation
Volume68
Issue number2
DOIs
StatePublished - Feb 2020

Keywords

  • Adaptive mesh refinement
  • discontinuous Galerkin
  • error estimation
  • integral equations
  • method of moments

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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