屏蔽效能的一些方面与测量和模拟有关

1999 IEEE International Symposium on Electromagnetic Compatability. Symposium Record (Cat. No.99CH36261) Pub Date : 1999-08-02 DOI:10.1109/ISEMC.1999.812952

J. Catrysse, R. De Smedt

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引用次数: 5

摘要

论述了外壳屏蔽效能的两个方面:屏蔽材料的特性和通过孔和栅格的泄漏。在这两种情况下，都提出了一种合适的测量装置，可以专注于所研究的方面:一个TEM-t电池来表征导电材料的薄片，一个带有可拆卸前面板的专用测试箱来研究孔径的影响。用三维全波场求解器对这些构型进行了模拟，并推导出相应的等效电路。数值结果有助于解释测量过程和确认测量结果。等效电路为EMC设计人员提供了快速、近似但仍然足够准确的答案。

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Some aspects of shielding effectiveness related to measurements and simulations

Two aspects of the shielding effectiveness of an enclosure are addressed: characteristics of the material of the shield and the leakage through apertures and grids. In both cases a suitable measurement set-up is presented, which enables to concentrate on the aspect under study: a TEM-t cell to characterize a thin sheet of conducting material, a dedicated test enclosure with removable front panel to study the effect of apertures. These configurations are also simulated with 3D full wave field solvers and suitable equivalent circuits are derived. The numerical results help to interpret the measurement procedure and confirm the measured results. The equivalent circuits provide fast and approximate, but still accurate enough answers to the EMC designer.

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1999 IEEE International Symposium on Electromagnetic Compatability. Symposium Record (Cat. No.99CH36261)

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