Conformal FDTD modeling of imperfect conductors at millimeter wave bands

Research output: Contribution to journalArticleResearchpeer-review

20 Citations (Scopus)


The Dey-Mittra conformal finite difference time domain (CFDTD) algorithm for perfect electrical conductors is modified for the analysis of finite conductivity conductors at millimeter wave frequencies. Formulas are derived for CFDTD coefficients using voltage state variables and a constant surface impedance boundary condition (SIBC). The approach permits a fast implementation suitable for CUDA type GPU hardware. Accuracy and stability are investigated with respect to the stability constraints on intersection areas introduced by Dey-Mittra and Benkler as well as the distance stability constraints of Zagorodnov that permits 100% Courant temporal sampling. A relaxation of the Zagorodnov distance constraints permits increased accuracy with respect to all alternative area constraints. Analytic solutions are used to judge the performance of the proposed CFDTD modifications for millimeter wave band applications. © 2006 IEEE.
Original languageEnglish
Article number5617234
Pages (from-to)199-205
JournalIEEE Transactions on Antennas and Propagation
Publication statusPublished - 1 Jan 2011


  • Compute Unified Device Architecture (CUDA)
  • conformal finite difference time domain (CFDTD)
  • imperfect conductors
  • millimeter waveband


Dive into the research topics of 'Conformal FDTD modeling of imperfect conductors at millimeter wave bands'. Together they form a unique fingerprint.

Cite this