Reducing Temperature Rise in Metal Meshes Exposed to Incident Electromagnetic Waves through Regular Polygonal Unit Structure

IF 0.3 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC IEICE Communications Express Pub Date : 2024-11-12 DOI:10.23919/comex.2024XBL0128

Hidetoshi Makimura;Yuta Sugiyama;Kengo Nishimoto;Yoshio Inasawa

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Abstract

This study investigated the thermal dynamics of conductive metal meshes under electromagnetic exposure to determine the correlation between the temperature rise observed in conductive metal meshes exposed to incident plane waves and the geometric configuration of the unit structure of the mesh. Multiphysics analysis conducted in this study demonstrated that a metal mesh characterized by narrow wire widths and short edges effectively mitigated the maximum temperature rise observed across the metal mesh despite maintaining equivalent sheet resistance. Furthermore, the results revealed that a metal mesh configured with regular hexagons could reduce the temperature rise by 3.7% and 2.2% compared with metal meshes composed of regular triangles and squares, respectively, and simultaneously maintained the sheet resistance and shielding effectiveness. The results of this study highlighted the significance of the unit structure shape in enhancing the thermal performance of conductive metal meshes and proposed a novel methodology for optimizing electromagnetic shielding structures.

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正多边形单元结构降低入射电磁波下金属网的温升

本文研究了导电金属网格在电磁照射下的热动力学，以确定入射平面波下导电金属网格的温升与网格单元结构的几何构型之间的关系。本研究中进行的多物理场分析表明，钢丝宽度窄、边缘短的金属网在保持等效板电阻的情况下，有效地减轻了金属网上观察到的最高温升。结果表明，与正三角形和正正方形组成的金属网相比，正六边形金属网的温升分别降低3.7%和2.2%，同时保持了片材电阻和屏蔽效果。该研究结果突出了单元结构形状对提高导电金属网热性能的重要性，并提出了一种优化电磁屏蔽结构的新方法。

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来源期刊

IEICE Communications Express ENGINEERING, ELECTRICAL & ELECTRONIC-

自引率

33.30%

发文量

114