A hybrid algorithm method for calculating electromagnetic shielding effectiveness of apertured enclosure with an arbitrary inner window

Jincheng Zhou; Xuetian Wang; Le Zou

doi:10.1587/elex.19.20220405

This article has now been updated. Please use the final version.

A hybrid algorithm method for calculating electromagnetic shielding effectiveness of apertured enclosure with an arbitrary inner window

Jincheng Zhou, Xuetian Wang, Le Zou

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Keywords: Shielding effectiveness, aperture coupling, general Baum-Liu-Tesche equation, electromagnetic compatibility

JOURNAL FREE ACCESS Advance online publication

Article ID: 19.20220405

DOI https://doi.org/10.1587/elex.19.20220405

The final version of this article is now available: Vol. 19 (2022), No. 23 pp. 20220405-20220405

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Abstract

A hybrid algorithm method for predicting the shielding effectiveness (SE) of apertured enclosure with an arbitrary inner window was proposed. By applying the concept of electromagnetic topology, equivalent circuit models of the enclosures are derived. The equivalent impedance of the arbitrary inner windows are calculated by a full-wave method. Then, the shielding effectiveness can be obtained using the extended BLT equation. Compared with full wave numerical simulation, the proposed method can reduce the computation time from 1000 seconds to 100 seconds while maintaining a very close accuracy.

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