Given the increasing need for an electromagnetic pulse (EMP) protection of operational infrastructure facilities, we designed, constructed, and verified a conductive thin-film structure with high shielding effectiveness (SE) from 10 kHz to 18 GHz. The SE of the conductive thin-films was measured preliminarily using ASTM D-4935 and the aperture method. In particular, the aperture size for the low-frequency magnetic band was increased to extend the dynamic range (DR) of measurement. We constructed a test shelter and an EMP protection facility for an operational office using the conductive thin-film. The measurement results for the material itself, test shelter, and the EMP protection facility were consistent from 10 kHz to 18 GHz, validating the measurement and construction methods proposed in this article. Moreover, the SE of the constructed EMP protection facility met the MIL-STD-188-125-1 requirements (over 80 dB up to 18 GHz). This study demonstrated that conductive thin-film structures can provide an alternative shielding solution for major infrastructure facilities.

中文翻译：

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用于运营基础设施 EMP 保护的导电薄膜结构：高达 18 GHz 的测量和验证


鉴于对运行基础设施的电磁脉冲 (EMP) 保护的需求日益增长，我们设计、构建并验证了一种在 10 kHz 至 18 GHz 频率范围内具有高屏蔽效能 (SE) 的导电薄膜结构。使用ASTM D-4935和孔径法初步测量了导电薄膜的SE。特别是，增加了低频磁带的孔径尺寸，以扩展测量的动态范围（DR）。我们使用导电薄膜为运营办公室建造了一个测试方舱和一个电磁脉冲防护设施。材料本身、测试方舱和EMP防护设施的测量结果在10 kHz至18 GHz范围内保持一致，验证了本文提出的测量和施工方法。此外，所构建的EMP保护设施的SE满足MIL-STD-188-125-1要求（在18 GHz时超过80 dB）。这项研究表明，导电薄膜结构可以为主要基础设施提供替代屏蔽解决方案。