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Characterization of the numerical group velocity in Yee's FDTD grid

  • Alvaro Valcarce
    ,
  • Hui Song
    ,
  • Jie Zhang
Research Output: Contribution to journal Article Peer-review

Abstract

A method is introduced for the optimization of the numerical group velocity in standard finite-difference time-domain (FDTD) electromagnetic simulations. Through this method analytical expressions for the extrema of are presented for the first time, thus also characterizing its anisotropy. The knowledge of these expressions is hence essential for the evaluation of the anisotropy error in FDTD-based electrodynamics simulations of the propagation of wavepackets in 2D and 3D. This can be of assistance, for example, in the design of error-bounded FDTD simulations with pulsed sources at low computational cost.

Publication Information

Output type

Research Output: Contribution to journal Article Peer-review

Original language

English

Pages from-to (Number of pages)

Pages 3974

Journal (Volume, Issue Number)

IEEE Transactions on Antennas and Propagation (Volume 58, Issue 12)

Publication milestones

  • Published - 01/12/2010

Publication status

Published - 01/12/2010

ISSN

0018-926X

External Publication IDs

  • handle.net: 10547/593542
  • Scopus: 78650002006

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