1. Parameters characterizing the effectiveness of electromagnetic shielding

The effectiveness of electromagnetic shielding is assessed by measurable quantities, based on two physical concepts [9] :

As the following examples show, the choice of definition depends on the type and area of application of the shielding.

Consider a metal enclosure, such as a Faraday cage, exposed to an electromagnetic field.

Field sensors, located where the enclosure will be installed, measure the electrical and magnetic components, noted respectively

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Parameters characterizing the effectiveness of electromagnetic shielding

References

(1) - SCHELKUNOFF (S.A.) - Electromagnetic Waves - . Van Nostrand Éd., 1943.
(2) - SCHULZ (R.B.), PLANTZ (V.C.) , BRUSCH (D.R.) - Shielding Theory and Practice - . IEEE Trans. on Electromagn. Compat., vol. 30, n ° 3, pp. 187-201, 1988....

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