New scaling factors of 2-D isotropic-dispersion finite difference time domain (ID-FDTD) algorithm for lossy media

Il Suek Koh, Hyun Kim, Jong Gwan Yook

Research output: Contribution to journalArticle

8 Citations (Scopus)


We modify the 2-D explicit isotropic-dispersion finite-difference time-domain (ID-FDTD) scheme originally proposed for lossless media [1], which can drastically improve the accuracy of the 2-D ID-FDTD scheme for lossy media. The proposed scheme adopts new scaling factors for material properties such as the permittivity, permeability and conductivity. The new scaling factors can generate nearly the exact phase velocity and attenuation factor of a lossy medium for a single frequency. For the validation of the proposed scheme, two scattering problems are considered.

Original languageEnglish
Pages (from-to)613-617
Number of pages5
JournalIEEE Transactions on Antennas and Propagation
Issue number2
Publication statusPublished - 2008 Feb 1


All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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