Electromagnetic shielding by metallized fabric enclosure: theory and experiment

Author

Blanchard, J.P. ; Tesche, F.M. ; Sands, Stuart H. ; Vandre, Robert H.

Author_Institution

LuTech Inc., Lafayette, CA, USA

Volume

30

Issue

3

fYear

1988

fDate

8/1/1988 12:00:00 AM

Firstpage

282

Lastpage

288

Abstract

A combined experimental and theoretical evaluation of shielding effectiveness of metallized fabric enclosures against electromagnetic radiation in the frequency range 10 kHz-130 MHz is reported. The test object consisted of a small wooden frame covered with one of two types of DEVEX metallized fabric. The shielding effectiveness of each fabric was measured in terms of a transfer function for the given enclosure. Deliberate degradations made to the enclosure shield demonstrated the importance of having a well-controlled or ´tight´ shield. A low-frequency calculational model allowed computation of the expected internal magnetic fields in the enclosure. The results of the experimental study compare favorably with the predictions of the model

Keywords

electromagnetic field theory; magnetic shielding; 100 kHz to 130 MHz; DEVEX metallized fabric; EM radiation; EM shielding; HF; LF; MF; VHF; VLF; degradations; enclosure shield; low-frequency calculational model; magnetic fields; metallized fabric enclosure; shielding effectiveness; test object; transfer function; wooden frame; Degradation; Electromagnetic measurements; Electromagnetic radiation; Electromagnetic shielding; Fabrics; Frequency; Magnetic field measurement; Metallization; Testing; Transfer functions;

fLanguage

English

Journal_Title

Electromagnetic Compatibility, IEEE Transactions on

Publisher

ieee

ISSN

0018-9375

Type

jour

DOI

10.1109/15.3306

Filename

3306