New Dual-Band EMI Metamaterial with Holes for Shielding 5G Electromagnetic Signals

2020 6th Global Electromagnetic Compatibility Conference (GEMCCON) Pub Date : 2020-10-20 DOI:10.1109/GEMCCON50979.2020.9456729

Chia-Tzen Sun, Dan Shi, Xiao Yong Liu, Chaoying Li

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引用次数: 1

Abstract

A frequency selective surface (FSS) based metamaterial structure with holes is proposed for 5G electromagnetic (EM) shielding. The proposed FSS can not only realizes the compact dual band-stop characteristics of close distance successfully, but also improves the ventilation and heat dissipation capacity compared to metallic enclosure. Taking −10 dB as the threshold for bandwidth measurement, the proposed FSS has two stop bands with central operating frequencies of 3.5GHz and 4.86GHz. The first suppressed bandwidth can reach 1.17GHz and the second can reach 0.67GHz. The proposed design shows a stable frequency response for the angles of incidence ranging from 0 to 45° for both TE and TM polarized electromagnetic signals. Through the analysis, an optimized FSS is designed which improves the shielding effect for both bands with bandwidth exceeding 1GHz and attenuation exceeding 30dB. In addition, the optimized metamaterial improves the angular stability to 60°. The proposed design has a great significance for the further development of 5G communication.

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屏蔽5G电磁信号的新型带孔双频EMI超材料

提出了一种基于频率选择表面(FSS)的多孔超材料结构，用于5G电磁屏蔽。所提出的FSS不仅可以成功实现紧凑的近距离双带阻特性，而且与金属外壳相比，还可以提高通风和散热能力。采用−10 dB作为带宽测量阈值，该FSS具有3.5GHz和4.86GHz的中心工作频率两个停止带。第一抑制带宽可达1.17GHz，第二抑制带宽可达0.67GHz。该设计对TE和TM极化电磁信号在0 ~ 45°入射角范围内均具有稳定的频率响应。通过分析，设计了一种优化的FSS，提高了带宽超过1GHz、衰减超过30dB的两个频段的屏蔽效果。此外，优化后的超材料将角稳定性提高到60°。所提出的设计对于5G通信的进一步发展具有重要意义。

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

2020 6th Global Electromagnetic Compatibility Conference (GEMCCON)

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