A laguerre-FDTD formulation for frequency-dependent dispersive materials

Myunghyun Ha, Madhavan Swaminathan

Research output: Contribution to journalArticlepeer-review

29 Scopus citations


In this letter, Laguerre finite-difference time domain (FDTD) formulation for linear dispersive materials is proposed. Laguerre-FDTD is a time-domain method using Laguerre polynomials that ensures unconditional stability. Being free from Courant-Friedrich-Lewy (CFL) stability condition, Laguerre-FDTD is advantageous in the simulation of multiscale structures. The derived formulation has been implemented in 3-D and verified with a test structure containing frequency-dependent dispersive materials.

Original languageEnglish (US)
Article number5739553
Pages (from-to)225-227
Number of pages3
JournalIEEE Microwave and Wireless Components Letters
Issue number5
StatePublished - May 2011

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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