DocumentCode
1097092
Title
Radial Perfectly Matched Layer for the ADI-FDTD Method
Author
Zheng, Hong-Xing ; Leung, Kwok Wa
Author_Institution
Dept. of Electron. Eng., City Univ. of Hong Kong, Hong Kong, China
Volume
19
Issue
7
fYear
2009
fDate
7/1/2009 12:00:00 AM
Firstpage
425
Lastpage
427
Abstract
In this letter, a circular absorbing boundary using the radial perfectly matched layer (RPML) is investigated for the alternating-direction-implicit finite-difference time-domain (ADI-FDTD) method. A staircase approach is used to approximate the circular boundary so that it is directly compatible with the commonly used Yee´s lattice. The proposed RPML boundary is computationally more efficient than the traditional rectangular PML boundary. It was found that more than 20% of the memory and computation time can be saved by using the proposed method.
Keywords
anisotropic media; computational electromagnetics; finite difference time-domain analysis; ADI-FDTD method; alternating-direction-implicit finite-difference time-domain method; circular absorbing boundary; radial perfectly matched layer; staircase approach; Alternating-direction implicit (ADI) method; anisotropic perfectly matched layer (PML); circular boundary truncation; 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.2009.2022118
Filename
5109498
Link To Document