Shielding effectiveness of rectangular metallic enclosures with apertures

Author

Po´ad, Farhana Ahmad ; Jenu, Mohd Zarar Mohd ; Christopoulos, C. ; Thomas, D.W.P. ; Abdullah, Wan Razli Wan ; Yusoff, Khadijah ; Shariff, Baharin Mohd

Author_Institution

Center for Electromagn. Compatibility, Kolej Univ. Teknologi Tun Hussein Onn, Malaysia

fYear

2005

fDate

20-21 Dec. 2005

Abstract

The determination of the shielding effectiveness of a rectangular enclosure with rectangular apertures by using analytical formulation and measurements are presented in this paper. The present analytical formulation has been extended to include modes higher than TE₁₀. Measurements conducted in a Gigahertz transverse electromagnetic (GTEM) cell show good agreement with theoretical values. The works show that the shielding effectiveness is dependent on frequency, orientation of apertures, aperture dimensions, enclosure dimensions and positions within the enclosure. Our approximate solution is computationally very efficient but may be improved further to include points nearer to the aperture.

Keywords

TEM cells; electromagnetic shielding; GTEM cell; Gigahertz transverse electromagnetic; rectangular apertures; rectangular metallic enclosures; shielding effectiveness; Apertures; Electromagnetic compatibility; Electromagnetic measurements; Electromagnetic shielding; Equivalent circuits; Frequency; Impedance; Protection; Shape; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Electromagnetics, 2005. APACE 2005. Asia-Pacific Conference on

Print_ISBN

0-7803-9431-3

Type

conf

DOI

10.1109/APACE.2005.1607799

Filename

1607799