Extension of a Memory-Efficient Formulation for the Unconditionally Stable WLP-FDTD Method

Author

Yan-Tao Duan ; Bin Chen ; Yun Yi ; Hai-Lin Chen

Author_Institution

Electromagn. Lab., Nanjing Eng. Insitute, Nanjing, China

Volume

18

Issue

11

fYear

2008

Firstpage

725

Lastpage

727

Abstract

In this letter, a memory efficient modification to the unconditionally stable finite-difference time-domain (FDTD) method combined with weighted Laguerre polynomials (WLP) is proposed. The divergence theorem is applied to the lossy media and perfectly matched layer (PML). This leads to a more memory-efficient matrix equation, and the computation time is reduced. A numerical example considering a two dimensional (2-D) TE case is presented to demonstrate the efficiency of the proposed algorithm.

Keywords

finite difference time-domain analysis; polynomial matrices; lossy media; memory-efficient formulation; memory-efficient matrix equation; perfectly matched layer; unconditionally stable WLP-FDTD method; unconditionally stable finite-difference time-domain method; weighted Laguerre polynomials; Finite difference methods; Mathematical model; Media; Perfectly matched layers; Polynomials; Time domain analysis; Laguerre polynomials; memory-efficient; unconditionally stable finite-difference time-domain (FDTD);

fLanguage

English

Journal_Title

Microwave and Wireless Components Letters, IEEE

Publisher

ieee

ISSN

1531-1309

Type

jour

DOI

10.1109/LMWC.2008.2005217

Filename

5594826