Least square method to optimize the coefficients of complex finite-difference space stencils

Bo Yang, Constantine Balanis

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

The numerical dispersion of the finite-difference timedomain methods can be lowered by using the complex space stencils. Properly adjusting the coefficients of the space stencils results in a further dispersion reduction. However, it is not trivial to determine the optimal values of the coefficients. This paper uses the least square method to optimize various finite-difference stencils. The method is validated by the numerical analysis.

Original languageEnglish (US)
Article number885012
Pages (from-to)450-453
Number of pages4
JournalIEEE Antennas and Wireless Propagation Letters
Volume5
Issue number1
DOIs
StatePublished - 2006

Keywords

  • Dispersion
  • Finite-difference time-domain method (fdtd)
  • Least square method
  • Optimization

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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