It is well known that a properly placed conductive gasket can complete an enclosure to yield good shielding. But often there are reasons, e.g. control of mechanical dimensions that this cannot be achieved. For these cases, one may want to avoid using a gasket that requires contacts. This paper will analyze alternatives to continuously contacting gaskets such as overlap structures, overlapping structures with different lossy and non-lossy materials, and overlaps with grounding points. It will compare structures by sufficient shielding for a typical class B product, high frequency (1-3 GHz) and low frequency (below 1 GHz) performance.
F. Centola et al., "Alternatives to Gaskets in Shielding an Enclosure," Proceedings of the IEEE International Symposium on Electromagnetic Compatibility (2002, Minneapolis, MN), vol. 1, pp. 205 - 209, Institute of Electrical and Electronics Engineers (IEEE), Aug 2002.
The definitive version is available at https://doi.org/10.1109/ISEMC.2002.1032475
IEEE International Symposium on Electromagnetic Compatibility (2002: Aug. 19-23, Minneapolis, MN)
Electrical and Computer Engineering
Electromagnetic Compatibility (EMC) Laboratory
Keywords and Phrases
1 to 3 GHz; Class B Product; Conductive Gasket Alternative; Continuously Contacting Gaskets; Earthing; Electromagnetic Compatibility; Electromagnetic Shielding; Enclosure Shielding; Grounding Points; Lossy Materials; Mechanical Dimensions; Nonlossy Materials; Overlap Structures; Packaging; Shielding Performance; Gaskets; Overlap; Shielding Effectiveness
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Article - Conference proceedings
© 2002 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.
01 Aug 2002