Approximate simulation of the shielding effectiveness of a rectangular enclosure with a grid wall

Author

de Smedt, Ronald ; De Moerloose, Jan ; Criel, Steven ; De Zutter, Daniël ; Olyslager, Frank ; Laermans, Eric ; Wallyn, Ward ; Lietaert, Norbert

Author_Institution

EMC Res., Alcatel Telecom, Antwerp, Belgium

Volume

2

fYear

1998

fDate

24-28 Aug 1998

Firstpage

1030

Abstract

The shielding effectiveness of a rectangular enclosure, with one wall as a grid, is studied in detail. An approximate technique is used: the holes of the grid are replaced by concentrated magnetic dipoles and the inside of the enclosure is regarded as a piece of a waveguide with only the lowest TE₁₀-mode present. This allows the construction of a simple equivalent circuit, from which the shielding effectiveness can be quickly deduced. This simple model has been checked against dedicated experiments, proving its validness even above the first resonance frequency of the empty enclosure

Keywords

electromagnetic shielding; equivalent circuits; magnetic moments; approximate technique; concentrated magnetic dipoles; empty enclosure; first resonance frequency; grid wall; lowest TE₁₀-mode present; rectangular enclosure; shielding effectiveness; simple equivalent circuit; waveguide; Apertures; Electromagnetic compatibility; Equivalent circuits; Impedance; Magnetic analysis; Magnetic field measurement; Magnetic shielding; Telecommunications; Voltage; Waveguide theory;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Compatibility, 1998. 1998 IEEE International Symposium on

Conference_Location

Denver, CO

Print_ISBN

0-7803-5015-4

Type

conf

DOI

10.1109/ISEMC.1998.750350

Filename

750350