Naslov
GTEM Cell Setup and Method for Measuring Shielding Effectiveness of Resonant Enclosures

Autori
Senić, Damir ; Šarolić, Antonio ; Roje, Vesna

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of EMC Europe 2011 York / - , 2011, 192-197

ISBN
978-0-9541146-3-3

Skup
EMC Europe 2011 York, 10th International Symposium on Electromagnetic Compatibility

Mjesto i datum
York, Ujedinjeno Kraljevstvo, 26.09.2011. - 30.09.2011

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
shielding effectiveness; GTEM cell; loaded reverberation chamber; mechanical mode stirring

Sažetak
A novel method for measuring the shielding effectiveness of a resonant metallic enclosure having apertures in a side wall is presented. The enclosure was resonant with respect to the frequency range of interest, preventing the usage of the methods described in literature. The setup is based on GTEM cell as a compact field-generating environment, capable of accommodating smaller enclosures. The enclosure was placed inside the GTEM test volume with the examined side wall facing the apex. Shielding effectiveness was obtained as the reciprocal ratio of the field strength measured inside the enclosure once with the side wall attached to the enclosure, and again with no side wall attached. To avoid resonant effects of the unloaded enclosure, mechanical stirring was applied, turning the enclosure into a reverberation chamber. The resonances were then further suppressed by reducing the Q factor. This was achieved by loading the enclosure with several glasses of water, essentially producing a loaded reverberation chamber. The method produced logical and usable results.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

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