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Article Dans Une Revue Electronics Année : 2021

Design of a Lightweight Multilayered Composite for DC to 20 GHz Electromagnetic Shielding

Résumé

The work aims to design a trilayer composite dedicated to electromagnetic shielding over a large frequency range, from 1 Hz to 20 GHz. Analytical and numerical models are used to determine the shielding effectiveness (SE) of this composite in the case of a planar shield. The shield is constituted of a support layer, a magnetic layer, and a conductive layer. Two possible designs are considered. To simplify the numerical calculation, a homogenization method and the Artificial Material Single Layer (AMSL) method are used. The proposed composite shows a good shielding capacity over the whole studied frequency range, with shielding effectiveness higher than 17 dB and 75 dB, respectively, in the near-field (1 Hz–1 MHz) and far-field (1 MHz–20 GHz). Both homogenization and AMSL methods show good suitability in near-field and allow one to greatly reduce the calculation time.
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hal-03507736 , version 1 (04-01-2022)

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Paul Clerico, Lionel Pichon, Xavier Mininger, Olivier Dubrunfaut, Chadi Gannouni, et al.. Design of a Lightweight Multilayered Composite for DC to 20 GHz Electromagnetic Shielding. Electronics, 2021, 10 (24), pp.3144. ⟨10.3390/electronics10243144⟩. ⟨hal-03507736⟩
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