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首页> 外文期刊>International journal of antennas and propagation >Spatial Filter Housing for Enhancement of the Shielding Effectiveness of Perforated Enclosures with Lossy Internal Coating: Broadband Characterization
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Spatial Filter Housing for Enhancement of the Shielding Effectiveness of Perforated Enclosures with Lossy Internal Coating: Broadband Characterization

机译：空间滤波器外壳，用于增强带损耗内涂层的带孔外壳的屏蔽效果：宽带特性

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This work is concerned with studying and enhancement of the electromagnetic shielding effectiveness of open metallic enclosures with openings over a wide range of the frequency including the UHF band. The suggested methods depend on the suppression of the excessive power penetrating the enclosure cavity especially at its resonances by a variety of methods that include increasing aspect ratio of the rectangular aperture, splitting the opening into a number of apertures, coating the internal walls of the metallic enclosure with a multilayered lossy material of the appropriate conductivity profile, and, finally, placing the metallic enclosure inside a spatial filter housing. A minimum value of 20 dB is achieved for the shielding effectiveness using the suggested methods. The present work also provides a study to investigate the effect of the direction and polarization of the incident plane wave on the shielding effectiveness of the enclosure.
机译：这项工作与研究和提高带有开口的金属外壳的电磁屏蔽效能有关，金属外壳的开口在包括UHF频带在内的很宽的频率范围内。建议的方法取决于通过多种方法来抑制穿透外壳腔体的过大功率，特别是在共振时，这些方法包括增加矩形孔的长宽比，将开口分成多个孔，覆盖金属的内壁用具有适当电导率分布的多层有损材料制成的外壳，最后将金属外壳放置在空间滤波器外壳内。使用建议的方法，屏蔽效果的最小值达到20 dB。本工作还提供了一项研究，以研究入射平面波的方向和极化对外壳的屏蔽效果的影响。

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