A synchronized multigrid time domain method via huygens subgridding and implicit algorithms

Zhenyu Huang, George Pan, Kun Shan Chen

Research output: Contribution to journalArticle

12 Scopus citations

Abstract

Based upon Huygens' subgridding (HSG) technique and unconditionally stable time domain algorithms, we present a synchronized multigrid time domain method for 2-and 3-D scattering problems. In this method, the implicit algorithms are employed in the fine grid region, while the Yee-FDTD is marching on the coarse mesh. As a result, the electromagnetic fields in both coarse and fine grid regions are updated synchronously. The synchronization has greatly simplified the HSG implementation and reduced updating substeps. Numerical examples demonstrate extremely low spurious reflection at the interface, robust stability for arbitrarily large spatial ratios, and suppression of late time instability.

Original languageEnglish (US)
Article number6425416
Pages (from-to)2605-2614
Number of pages10
JournalIEEE Transactions on Antennas and Propagation
Volume61
Issue number5
DOIs
StatePublished - Jan 1 2013

Keywords

  • Extinction theorem
  • Huygens principle
  • field teleportation (FTP)
  • subgridding
  • unconditional stability

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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