A new anisotropic perfectly matched layer medium for mesh truncation in finite difference time domain analysis

Tong M., Chen Y., Kuzuoglu M., Mittra R.

INTERNATIONAL JOURNAL OF ELECTRONICS, vol.86, no.9, pp.1085-1091, 1999 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 86 Issue: 9
  • Publication Date: 1999
  • Doi Number: 10.1080/002072199132860
  • Journal Name: INTERNATIONAL JOURNAL OF ELECTRONICS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.1085-1091
  • Middle East Technical University Affiliated: Yes

Abstract

In this paper an unsplit anisotropic perfectly matched layer (PML) medium, previously utilized in the context of finite element analysis, is implemented in the finite difference time domain (FDTD) algorithm. The FDTD anisotropic PML is easy to implement in the existing FDTD codes, and is well suited for truncating inhomogeneous and layered media without special treatment required in the conventional PML approach. A further advantage of the present approach is improved performance at lower frequencies. The applications of the unsplit anisotropic PML/FDTD method are illustrated by considering the problems of a plane wave propagation and an open microstrip line.