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硅酸盐通报 ›› 2023, Vol. 42 ›› Issue (9): 3359-3366.

• 玻璃 • 上一篇    下一篇

新型三频段FSS夹层玻璃的设计与电磁屏蔽性能研究

谭天, 陈睿哲, 张泽, 侯新宇   

  1. 上海大学材料科学与工程学院,上海 200444
  • 收稿日期:2023-04-18 修订日期:2023-06-12 出版日期:2023-09-15 发布日期:2023-09-14
  • 通信作者: 侯新宇,博士,教授。E-mail:267275650@qq.com
  • 作者简介:谭 天(1999—),男,硕士研究生。主要从事频率选择表面、薄膜制备技术方面的研究。E-mail:1033758472@qq.com

Design and Electromagnetic Shielding Performance of New Triple-Band FSS Laminated Glass

TAN Tian, CHEN Ruizhe, ZHANG Ze, HOU Xinyu   

  1. School of Materials Science and Engineering, Shanghai University, Shanghai 200444, China
  • Received:2023-04-18 Revised:2023-06-12 Online:2023-09-15 Published:2023-09-14

摘要: 本文介绍了用于全球移动通信系统(GSM)屏蔽和无线局域网(WLAN)隔离的夹层玻璃,在两层玻璃中间夹嵌了一层由圆环和三极子缝隙单元组成的频率选择表面(FSS),能够抑制1.94、3.55和4.98 GHz频段的传输。采用等效电路模型对FSS夹层玻璃的结构参数进行分析, 2 GHz频点会随着圆环半径的增加而前移,三极子在镂空成为三级子缝隙后,产生两个阻带,并且三极子长度会对频点产生影响,对线宽和三级子缝隙宽度则影响不大。本文介绍了等效电路元件参数的提取计算过程,采用电磁仿真软件对FSS结构的传输响应进行仿真,分析了结构的几何参数和入射角度对结构传输特性的影响。在入射角达到60°时FSS夹层玻璃仍具有良好的屏蔽效果。采用丝网印刷方法制作了实验样件,并进行了透波率和透光率测试。测试结果与软件仿真结果一致性良好,因此本文所设计的夹层玻璃在电磁辐射防护、GSM屏蔽和WLAN隔离等方面具有良好的应用潜力。

关键词: 频率选择表面, 夹层玻璃, 角度稳定性, 三频段, 导电银浆, 电磁屏蔽

Abstract: This paper presents a laminated glass for GSM shielding and WLAN isolation, a frequency selective surface (FSS) with a layer of ring and tripole slot elements embedded in the middle, capable suppress transmission in the 1.94, 3.55 and 4.98 GHz bands. The structural parameters of FSS laminated glass were analyzed by using the equivalent circuit model. The 2 GHz frequency point will move forward with the increase of the radius of the ring. After the tripole is hollowed out to become a three-level sub-slit, two stop bands will be generated, and the length of the tripole will affect the frequency point. But the line width and the third-level sub-slot width have little effect. The extraction and calculation process of the parameters of the equivalent circuit components was introduced. The transmission response of the FSS structure was simulated by using electromagnetic simulation software, and the influence of the geometric parameters of the structure and the incident angle on the transmission characteristics of the structure were analyzed. It still has a good shielding effect when the incident angle reaches 60°. The experimental samples were made by screen printing method, and the wave transmittance and light transmittance tests were carried out. The test results are in good agreement with the software simulation results, so it has good application potential in electromagnetic radiation protection, GSM shielding and WLAN isolation.

Key words: frequency selective surface, laminated glass, angular stability, triple-band, conductive silver paste, electromagnetic shielding

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