电磁谐振会导致屏蔽箱体的屏蔽效能急剧降低。为分析发生在船用通信频段的孔腔耦合谐振特性，基于三维电磁场仿真软件，分析了在船用通信频段引起电磁耦合谐振的孔缝尺寸条件。在此基础上，研究缝隙的分段情况、缝隙宽度、缝隙厚度、缝隙位置及缝隙数量对电磁耦合谐振的影响规律。本文研究结果在船用屏蔽箱体设计中抑制或控制船用通信频段电磁耦合谐振具有一定参考价值。
Electromagnetic resonance causes the shielding effectiveness of the shielded box to be drastically reduced. In order to analyze the cavity-box coupled resonance characteristics occurring in the maritime communication band, the pore size of electromagnetic coupled resonance in the marine communication band was analyzed based on the three-dimensional electromagnetic field simulation software. On the basis of this, the influences of the subdivision of the slot, the width of the slot, the thickness of the slot, the position of the slot and the number of slots on the electromagnetic coupling resonance are studied. The results of this paper have some reference value in the design of marine shielded box to suppress or control the electromagnetic coupling resonance of marine communications band.
2018,40(6): 120-123 收稿日期：2018-01-31
DOI：10.3404/j.issn.1672-7649.2018.06.025
分类号：TN011
基金项目：国家自然科学基金资助项目（51109172）
作者简介：罗名祺(1990-),男,硕士,主要从事船舶电磁兼容方面的研究
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