电缆布线和长度对屏蔽箱谐振频率的影响

2020 IEEE International Symposium on Electromagnetic Compatibility & Signal/Power Integrity (EMCSI) Pub Date : 2020-07-01 DOI:10.1109/EMCSI38923.2020.9191484

M. Bahadorzadeh, C. Bunting, J. West

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引用次数: 0

摘要

采用数值电磁包法对屏蔽箱内电缆布线的影响进行了评价。提出了固定长度和变化长度的不同电缆路径。考虑了不同测试工况下电缆馈电口反射系数和辐射电场。考察了箱体内部的槽孔、外部结构与箱体之间的间隙以及电缆走线对辐射电场和受激槽谐振的影响。介绍了壳体与电缆共振的耦合及其对辐射发射的影响。文中还分析了导线路径对槽谐振的影响。通过与实验室测量结果的对比，对代表性案例的模拟结果进行了实证验证。

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The Effects of Cable routing and Length on The Resonant Frequencies in a Shielding Box

The effects of cable routing within a shielding box has been evaluated using a numerical electromagnetic package. Different cable paths with both constant and varying lengths have proposed. The cable-feed port reflection coefficient and radiated electric field were considered for different test cases. The influence of slot apertures in the enclosure itself, gaps between external structures and the enclosure body, and cable route on radiated electric field and excited slot resonances are examined. The coupling between enclosure and cable resonances and their effects radiation emission are presented. The effect of the wire path on the slot resonances is also shown. The simulations for representative cases were empirically verified through comparison with laboratory measurement.

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来源期刊

2020 IEEE International Symposium on Electromagnetic Compatibility & Signal/Power Integrity (EMCSI)

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