Shielding effectiveness of screened rooms with line feed-throughs - a semi-analytical approach

H. Karcoon, S. Parr, S. Dickmann, R. Rambousky
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引用次数: 1

Abstract

Line feed-throughs are an important construction element used in securing the screening effect of shielded rooms, facilities and devices. Without taking special precautions at the feed-through point, the shielding effectiveness can be significantly reduced, especially if cavity resonances occur. Therefore, it is important to analyze how line feed-throughs and line lengths quantitatively affect the shielding effectiveness of such rooms. This can be addressed using the semi-analytical formulation developed in this paper, consisting of a combination of numerical 3D-field simulation (FIT) and analytical formulation. Using this method, practical protective measures have been derived and confirmed by performing measurements on a practical example. Our main focus is on the susceptibility of electronic systems in metallic rooms of a ship in an Intentional Electromagnetic Interference (IEMI) environment.
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线馈通屏蔽室的屏蔽效果——半分析方法
线路馈线是一种重要的建筑元素,用于确保屏蔽房间、设施和设备的屏蔽效果。如果在馈通点不采取特别的预防措施,屏蔽效果会显著降低,特别是当腔共振发生时。因此,定量分析线路馈线和线路长度如何影响此类房间的屏蔽效果是很重要的。这可以使用本文开发的半解析公式来解决,该公式由数值3d场模拟(FIT)和解析公式的组合组成。利用该方法推导出了实用的防护措施,并通过实例进行了测量验证。本文主要研究船舶金属舱室电子系统在有意电磁干扰(IEMI)环境下的易感性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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