Title :
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
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;
Conference_Titel :
Electromagnetic Compatibility, 1998. 1998 IEEE International Symposium on
Conference_Location :
Denver, CO
Print_ISBN :
0-7803-5015-4
DOI :
10.1109/ISEMC.1998.750350
