Robust finite element modeling of electromagnetic interactions in complex structures via multigrid and multilevel preconditioning

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Abstract

This paper discusses the application of multigrid and multi-level preconditioned for improving the convergence of iterative finite element solvers used for the modeling of electromagnetic wave interactions in structures exhibiting large electrical and/or high geometric aad material complexity. The applications considered include both modeling of electromagnetic wave scattering from three-dimensional targets and modeling of reflection and transmission properties of waveguiding structures and related passive components, used hi high-frequency/high-speed integrated circuit design. These two classes of problems help contrast the attributes of the multigrid and multi-level processes in the context of improving iterative finite element solution efficiency and accuracy. Furthermore, they suggest possible hybridizations of the two processes, aimed at the robust and accurate solution of complicated electromagnetic problems where improved accuracy requires the utilization of both grid refinement and high-order element interpolation.

Original languageEnglish (US)
Pages (from-to)355-358
Number of pages4
JournalIEEE Antennas and Propagation Society, AP-S International Symposium (Digest)
Volume1
DOIs
StatePublished - 2004
EventIEEE Antennas and Propagation Society Symposium 2004 Digest held in Conjunction with: USNC/URSI National Radio Science Meeting - Monterey, CA, United States
Duration: Jun 20 2004Jun 25 2004

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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