An Analytical Evaluation of the Shielding Effectiveness of Enclosures Containing Complex Apertures

Analytical methods are significantly useful tools for engineers in computational modeling. These methods provide fast simulations, while preserving physical meaning. In this paper, a full analytical formulation is developed based on the circuit approach, also known as Intermediate Level Circuit Mode...

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Autores principales:	Amelie Rabat, Pierre Bonnet, Khalil El Khamlichi Drissi, Sebastien Girard
Formato:	article
Lenguaje:	EN
Publicado:	IEEE 2021
Materias:	Analytical formulation circuit model complex apertures metallic enclosures polarizability shielding effectiveness Electrical engineering. Electronics. Nuclear engineering TK1-9971
Acceso en línea:	https://doaj.org/article/47ca3a46bbf143bfaf268690b638c225
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spelling	oai:doaj.org-article:47ca3a46bbf143bfaf268690b638c2252021-11-18T00:09:34ZAn Analytical Evaluation of the Shielding Effectiveness of Enclosures Containing Complex Apertures2169-353610.1109/ACCESS.2021.3123441https://doaj.org/article/47ca3a46bbf143bfaf268690b638c2252021-01-01T00:00:00Zhttps://ieeexplore.ieee.org/document/9590542/https://doaj.org/toc/2169-3536Analytical methods are significantly useful tools for engineers in computational modeling. These methods provide fast simulations, while preserving physical meaning. In this paper, a full analytical formulation is developed based on the circuit approach, also known as Intermediate Level Circuit Model (ILCM), to evaluate the shielding effectiveness (SE) of metallic structures. The proposal focuses on rectangular enclosures containing apertures of complex geometrical shape, illuminated by an external plane wave. The enclosure is taken as a short-circuited waveguide. The aperture is treated as a transmission line with an intrinsic impedance that depends on the aperture polarizability, according to Bethe’s theory of small holes. The formulation easily takes into account high-order resonant modes and different apertures, such as circular, elliptical, round-ended and cross-shaped apertures. The ILCM technique reveals good agreement with a numerical full-wave method for various configurations of enclosures, covering a large range of frequencies from 0.5 GHz to 2.5 GHz, thus offering perspectives for parametric and/or optimization SE studies.Amelie RabatPierre BonnetKhalil El Khamlichi DrissiSebastien GirardIEEEarticleAnalytical formulationcircuit modelcomplex aperturesmetallic enclosurespolarizabilityshielding effectivenessElectrical engineering. Electronics. Nuclear engineeringTK1-9971ENIEEE Access, Vol 9, Pp 147191-147200 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Analytical formulation circuit model complex apertures metallic enclosures polarizability shielding effectiveness Electrical engineering. Electronics. Nuclear engineering TK1-9971
spellingShingle	Analytical formulation circuit model complex apertures metallic enclosures polarizability shielding effectiveness Electrical engineering. Electronics. Nuclear engineering TK1-9971 Amelie Rabat Pierre Bonnet Khalil El Khamlichi Drissi Sebastien Girard An Analytical Evaluation of the Shielding Effectiveness of Enclosures Containing Complex Apertures
description	Analytical methods are significantly useful tools for engineers in computational modeling. These methods provide fast simulations, while preserving physical meaning. In this paper, a full analytical formulation is developed based on the circuit approach, also known as Intermediate Level Circuit Model (ILCM), to evaluate the shielding effectiveness (SE) of metallic structures. The proposal focuses on rectangular enclosures containing apertures of complex geometrical shape, illuminated by an external plane wave. The enclosure is taken as a short-circuited waveguide. The aperture is treated as a transmission line with an intrinsic impedance that depends on the aperture polarizability, according to Bethe’s theory of small holes. The formulation easily takes into account high-order resonant modes and different apertures, such as circular, elliptical, round-ended and cross-shaped apertures. The ILCM technique reveals good agreement with a numerical full-wave method for various configurations of enclosures, covering a large range of frequencies from 0.5 GHz to 2.5 GHz, thus offering perspectives for parametric and/or optimization SE studies.
format	article
author	Amelie Rabat Pierre Bonnet Khalil El Khamlichi Drissi Sebastien Girard
author_facet	Amelie Rabat Pierre Bonnet Khalil El Khamlichi Drissi Sebastien Girard
author_sort	Amelie Rabat
title	An Analytical Evaluation of the Shielding Effectiveness of Enclosures Containing Complex Apertures
title_short	An Analytical Evaluation of the Shielding Effectiveness of Enclosures Containing Complex Apertures
title_full	An Analytical Evaluation of the Shielding Effectiveness of Enclosures Containing Complex Apertures
title_fullStr	An Analytical Evaluation of the Shielding Effectiveness of Enclosures Containing Complex Apertures
title_full_unstemmed	An Analytical Evaluation of the Shielding Effectiveness of Enclosures Containing Complex Apertures
title_sort	analytical evaluation of the shielding effectiveness of enclosures containing complex apertures
publisher	IEEE
publishDate	2021
url	https://doaj.org/article/47ca3a46bbf143bfaf268690b638c225
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An Analytical Evaluation of the Shielding Effectiveness of Enclosures Containing Complex Apertures

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