• DocumentCode
    1463330
  • Title

    Extending the Stability Limit of the FDTD Method With Spatial Filtering

  • Author

    Sarris, Costas D.

  • Author_Institution
    Dept. of Electr. & Comput. Eng., Univ. of Toronto, Toronto, ON, Canada
  • Volume
    21
  • Issue
    4
  • fYear
    2011
  • fDate
    4/1/2011 12:00:00 AM
  • Firstpage
    176
  • Lastpage
    178
  • Abstract
    It is shown that the well-known Courant stability limit of the finite-difference time-domain (FDTD) method can be controlled and extended by filtering out unstable spatial harmonics that develop when the time-step is chosen to exceed this limit. The formulation of a spatially filtered FDTD algorithm is accompanied by a numerical benchmarking study that includes cavity resonator and backward wave media simulations.
  • Keywords
    cavity resonator filters; finite difference time-domain analysis; harmonics; numerical stability; Courant stability limit; FDTD method; backward wave media simulation; cavity resonator; finite-difference time-domain method; spatial filtering; spatial harmonics; Finite difference methods; Numerical stability; Power harmonic filters; Power system stability; Stability criteria; Time domain analysis; Finite-difference time-domain; numerical stability;
  • fLanguage
    English
  • Journal_Title
    Microwave and Wireless Components Letters, IEEE
  • Publisher
    ieee
  • ISSN
    1531-1309
  • Type

    jour

  • DOI
    10.1109/LMWC.2011.2105467
  • Filename
    5723026
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1463330