Envelope ADI-FDTD method and its application in three-dimensional nonuniform meshes

Shu H. Sun*, T.m. Choi

*Corresponding author for this work

Research output: Contribution to journalArticle

4 Scopus citations

Abstract

The envelope alternating-direction-implicit finite difference time domain (ADI-FDTD) method in 3-D nonuniform meshes was proposed and studied. The phase velocity error for the envelope ADI-FDTD and ADI-FDTD methods in uniform and nonuniform meshes and different temporal increments were studied. A cavity problem was studied using the envelope ADI-FDTD and ADI-FDTD methods in graded meshes and the conventional FDTD method in a uniform mesh. The simulation results show that the envelope ADI-FDTD performs better than the ADI-FDTD in numerical accuracy.

Original languageEnglish
Pages (from-to)253-255
Number of pages3
JournalIEEE Microwave and Wireless Components Letters
Volume17
Issue number4
DOIs
StatePublished - 1 Apr 2007

Keywords

  • Courant-Friedrich-Levy (CFL) stability condition
  • Envelope alternating-direction-implicit finite difference time domain (ADI-FDTD) method
  • Phase velocity

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