Subcell FDTD analysis of shielding effectiveness of a thin-walled enclosure with an aperture

Author

Jiao, Chaoqun ; Li, Lin ; Cui, Xiang ; Li, Huiqi

Author_Institution

Key Lab. of Power Syst. Protection & Dynamic Security Monitoring & Control under Minist. of Educ., North China Electr. Power Univ., Hebei

Volume

42

Issue

4

fYear

2006

fDate

4/1/2006 12:00:00 AM

Firstpage

1075

Lastpage

1078

Abstract

An improved subcell model is presented for including thin material sheets method in the finite-difference time-domain (FDTD) method. This improved subcell can be used to simulate a thin magnetic (mu_S ne mu₀) sheet. Then, the improved subcell model is applied to the analysis of the shielding effectiveness (SE) of the electromagnetic wave propagating through a thin infinite material sheet, which is verified by comparison with the analytical results. Updated equations for components of the field on special spatial grids which are on edges and corners of the enclosure are presented, and the subcell model is used for the analysis of a thin-walled enclosure with an aperture. The FDTD results are in very good agreement with the test results

Keywords

electromagnetic shielding; electromagnetic wave propagation; finite difference time-domain analysis; electromagnetic wave propagation; finite difference time domain method; shielding effectiveness; thin infinite material sheet; thin magnetic sheet; thin walled enclosure; thin-walled enclosure; Apertures; Electromagnetic analysis; Electromagnetic modeling; Finite difference methods; Magnetic analysis; Magnetic materials; Magnetic shielding; Sheet materials; Thin wall structures; Time domain analysis; Enclosure with an aperture; shielding effectiveness (SE); subcell model; thin material sheet;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2006.871638

Filename

1608396