Perfect plane wave injection into 3D FDTD (2, 4) scheme

Author

Hui, Wang ; Zhi-Xiang, Huang ; Xian-Liang, Wu ; Lei, Wu

Author_Institution

Key Lab. of Intell. Comput. & Signal Process., Anhui Univ., Hefei, China

Volume

1

fYear

2011

fDate

26-30 July 2011

Firstpage

40

Lastpage

43

Abstract

In the paper, the authors derive the method of splitting plane wave FDTD (SP-FDTD) method for initiation of plane wave sources in the total-field and scattered-field (TF/SF) formulation of 3D FDTD (2, 4) scheme. By splitting the fields on 1D auxiliary grids, the identical dispersion relation can be obtained between the 1D auxiliary grids and the 3D grids, which is also proved to be using the nature of plane wave. Using 1D auxiliary grids for introducing a plane wave, a perfect plane wave injection can be achieved at any angle forming an integer grid cell ratio. Numerical simulations also indicate the efficiency and validity of the method for FDTD (2, 4) scheme and the leakage error on the order of -300dB for double precision.

Keywords

electromagnetic wave scattering; finite difference time-domain analysis; 3D FDTD scheme; identical dispersion relation; perfect plane wave injection; plane wave sources; scattered-field; total-field; FDTD (2, 4) scheme; plane wave sources; splitting plane wave FDTD; total-field and scattered-field;

fLanguage

English

Publisher

ieee

Conference_Titel

Cross Strait Quad-Regional Radio Science and Wireless Technology Conference (CSQRWC), 2011

Conference_Location

Harbin

Print_ISBN

978-1-4244-9792-8

Type

conf

DOI

10.1109/CSQRWC.2011.6036879

Filename

6036879