A simple and efficient implementation of CFS-PML in the FDTD analysis of periodic structures

Davi Correia, Jian Ming Jin

Research output: Contribution to journalArticlepeer-review

Abstract

The use of perfectly matched layers (PMLs) is one of the most popular techniques employed for mesh truncation in finite-difference time-domain (FDTD) simulations. Its original form, however, has a poor absorption of evanescent waves, which are highly present in simulations of periodic structures. A better absorption has been achieved using a complex frequency shifted (CFS) PML, which has been implemented via a convolution scheme. In this letter, we present a simple and efficient implementation of the CFS PML and apply it to periodic structures.

Original languageEnglish (US)
Pages (from-to)487-489
Number of pages3
JournalIEEE Microwave and Wireless Components Letters
Volume15
Issue number7
DOIs
StatePublished - Jul 1 2005

Keywords

  • Complex frequency shifted (CFS)
  • Evanescent waves
  • Finite-difference time-domain (FDTD)
  • Floquet modes
  • Perfectly matched layer (PML)
  • Periodic structures

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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