Hybrid model for estimating the shielding effectiveness of metallic enclosures with arbitrary apertures

Hu, Pu-Yu; Sun, Xiaoying; Chen, Jian

doi:10.1049/iet-smt.2019.0278

Cited by 4 publications

(2 citation statements)

References 30 publications

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“…Based on equivalent circuits, the SE evaluation for an enclosure with an arbitraryshaped aperture can also be realized. For this purpose, according to [27,28], Z ap can be calculated from the results of full-wave numerical analysis. However, in [29], a fully analytical formulation for determining the Z ap impedance for an arbitrary-shaped aperture has been proposed.…”

Section: Modifications Of Aperture Representationmentioning

confidence: 99%

Generalized Algorithm Based on Equivalent Circuits for Evaluating Shielding Effectiveness of Electronic Equipment Enclosures

et al. 2023

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The article proposes a generalized algorithm for evaluating the shielding effectiveness (SE) of electronic equipment enclosures. The algorithm is based on a number of analytical models that use equivalent circuits to obtain SE values. The article begins with a brief review and interpretation of the mathematical formulation used in the algorithm. Then, we describe the proposed algorithm using flowcharts, and we perform its validation. The validation results show that the proposed algorithm has acceptable accuracy and gives SE values comparable to numerical methods or measurements, with much less time costs. The last part of the article presents the software developed to evaluate SE based on analytical models.

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Section: Modifications Of Aperture Representationmentioning

confidence: 99%

Generalized Algorithm Based on Equivalent Circuits for Evaluating Shielding Effectiveness of Electronic Equipment Enclosures

et al. 2023

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“…The formulation could be applied to aperture shapes other than a circle, but the demonstration would be too tedious to be appreciable. Recently, two efficient models have been developed by Shourvarzi [13] and Hu [14]. These formulations combines numerical data with a circuit approach.…”

Section: Introductionmentioning

confidence: 99%

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

Rabat¹,

Bonnet

Drissi

et al. 2021

IEEE Access

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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.

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An improved model for the analysis of the shielding performance of an apertured enclosure based on EMT theory and BLT equation

Sun

Gong

Jiang

2021

Journal of Electromagnetic Waves and Applications

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Hybrid model for estimating the shielding effectiveness of metallic enclosures with arbitrary apertures

Cited by 4 publications

References 30 publications

Generalized Algorithm Based on Equivalent Circuits for Evaluating Shielding Effectiveness of Electronic Equipment Enclosures

Generalized Algorithm Based on Equivalent Circuits for Evaluating Shielding Effectiveness of Electronic Equipment Enclosures

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

An improved model for the analysis of the shielding performance of an apertured enclosure based on EMT theory and BLT equation

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