A nonstandard schwarz domain decomposition method for finite-element mesh truncation of infinite arrays

Daniel Garcia-Donoro, Luis Emilio Garcia-Castillo, Tapan Kumar Sarkar, Yu Zhang

Research output: Contribution to journalArticle

2 Scopus citations

Abstract

A nonstandard Schwarz domain decomposition method is proposed as finite-element mesh truncation for the analysis of infinite arrays. The proposed methodology provides an (asymptotic) numerically exact radiation condition regardless of the distance to the sources of the problem and without disturbing the original sparsity of the finite-element matrices. Furthermore, it works as a multi Floquet mode (propagating and evanescent) absorbing boundary condition. Numerical results illustrating main features of the proposed methodology are shown.

Original languageEnglish (US)
Article number8443383
Pages (from-to)6179-6190
Number of pages12
JournalIEEE Transactions on Antennas and Propagation
Volume66
Issue number11
DOIs
StatePublished - Nov 1 2018

Keywords

  • Finite element method (FEM)
  • infinite array
  • mesh truncation
  • Schwarz domain decomposition method (DDM)

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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