ADE-FDTD scattered-field formulation for dispersive materials

Soon Cheol Kong*, Jamesina J. Simpson, Vadim Backman

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

29 Scopus citations


This letter presents a scattered-field formulation for modeling dispersive media using the finite-difference time-domain (FDTD) method. Specifically, the auxiliary differential equation method is applied to Drude and Lorentz media for a scattered field FDTD model. The present technique can also be applied in a straightforward manner to Debye media. Excellent agreement is achieved between the FDTD-calculated and exact theoretical results for the reflection coefficient in half-space problems.

Original languageEnglish (US)
Pages (from-to)4-6
Number of pages3
JournalIEEE Microwave and Wireless Components Letters
Issue number1
StatePublished - Jan 2008


  • Auxiliary differential equation (ADE) method
  • Dispersive media
  • Finite-difference time-domain (FDTD) method
  • Scattered-field

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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