Equivalent analytical model of plain weave composite fabric for electromagnetic shielding applications

IF 0.9 4区工程技术 Q4 ENGINEERING, CHEMICAL

Journal of Microwave Power and Electromagnetic Energy Pub Date : 2020-07-02 DOI:10.1080/08327823.2020.1794722

A. O. Kizilçay, Y. Akinay

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Abstract

Abstract In this paper, the electromagnetic shielding effectiveness results of the plain weave composite fabric and the analytical solution of metal mesh were investigated. The composite fabric made of cotton yarns twisted with 50 µm copper filaments was used in the experiment. As the fabric was weaved and stretched, it had square shaped apertures which had length of 1.2 mm. The electromagnetic shielding effectiveness of these fabrics was measured in the frequency range of 1.7–2.6 GHz via WR430 waveguide system. In order to model the shielding results of the aforementioned fabric, an analytical solution which facilitates to calculate shielding effectiveness of metal mesh, was taken into consideration. Due to the physical similarity between the fabric geometry and metal mesh structure, the values of fabric characteristics were substituted in analytical solution. A statistical approach showed that the measured SE results of plain weave composite fabric fitted in the analytical solution for metal mesh in 1.82–2.6 GHz frequency range with strength of 30–36 dB. Thus, depending on desired shielding efficiency the physical texture of shielding fabric can be determined analytically.

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电磁屏蔽用平纹复合织物的等效解析模型

摘要本文研究了平纹复合织物的电磁屏蔽效果和金属网的解析解。实验采用棉纱加50µm铜丝捻制而成的复合织物。由于织物经过编织和拉伸，它具有长度为1.2毫米的方形孔。通过WR430波导系统在1.7 ~ 2.6 GHz频率范围内测量了这些织物的电磁屏蔽效果。为了对上述织物的屏蔽效果进行建模，采用了一种便于计算金属网屏蔽效果的解析解。由于织物几何形状与金属网结构的物理相似性，将织物特性值代入解析解中。统计结果表明，平纹复合织物的SE测量结果符合1.82 ~ 2.6 GHz频率范围内强度为30 ~ 36 dB的金属网解析解。因此，根据所需的屏蔽效率，可以解析地确定屏蔽织物的物理结构。

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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来源期刊

Journal of Microwave Power and Electromagnetic Energy ENGINEERING, CHEMICAL-ENGINEERING, ELECTRICAL & ELECTRONIC

CiteScore

2.50

自引率

6.70%

发文量

期刊介绍： The Journal of the Microwave Power Energy (JMPEE) is a quarterly publication of the International Microwave Power Institute (IMPI), aimed to be one of the primary sources of the most reliable information in the arts and sciences of microwave and RF technology. JMPEE provides space to engineers and researchers for presenting papers about non-communication applications of microwave and RF, mostly industrial, scientific, medical and instrumentation. Topics include, but are not limited to: applications in materials science and nanotechnology, characterization of biological tissues, food industry applications, green chemistry, health and therapeutic applications, microwave chemistry, microwave processing of materials, soil remediation, and waste processing.