Title :
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
fDate :
8/1/1988 12:00:00 AM
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;
Journal_Title :
Electromagnetic Compatibility, IEEE Transactions on
