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

Davi Correia; Jian Ming Jin

doi:10.1109/LMWC.2005.851583

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

Research output: Contribution to journal › Article › peer-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 language	English (US)
Pages (from-to)	487-489
Number of pages	3
Journal	IEEE Microwave and Wireless Components Letters
Volume	15
Issue number	7
DOIs	https://doi.org/10.1109/LMWC.2005.851583
State	Published - 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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title = "A simple and efficient implementation of CFS-PML in the FDTD analysis of periodic structures",

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.",

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