基于二阶滤波器的宽工作频带、高屏蔽效能的多层能量选择表面

IF 2 3区 计算机科学 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC
Tao Zhou;Peiguo Liu;Chenxi Liu;Huan Jiang;Tao Tian
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引用次数: 0

摘要

本文提出了一种由非谐振单元电池组成的具有超宽工作频带和高功率隔离的多层能量选择表面(ESS)。首先设计并优化了一个简单的二阶滤波电路。然后,在从电路到超表面的引导下,设计了带有金属贴片和八角形环的ESS来匹配二阶滤波电路。该系统对低功率和高功率入射微波均表现出非线性响应。ESS的工作特性是由非谐振电容片和感应八角形环的层间共振产生的。分别进行了电路仿真和全波仿真,结果具有较好的一致性。同时,制作了两个ESS原型,并在WR-137和WR-90波导中进行了不同入射功率下的实验。仿真和实验结果表明,所提出的ESS在低功率入射波下具有覆盖5.8 ~ 9.0 GHz的1 dB宽工作频带,在高功率微波下具有高达22 dB的屏蔽效能。特别是,在9 GHz时,最大SE可达25.7 dB。本文为宽带电子设备提供了一种可行的、有前景的强电磁保护方法。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Multilayer Energy Selective Surface With Wide Operational Band and High Shielding Effectiveness Based on Second-Order Filter
In this article, a novel multilayer energy selective surface (ESS) with an ultrawide operational band and high-power isolation composed of nonresonant unit cells is presented. A simple second-order filter circuit is designed and optimized first. Then, an ESS with metallic patches and octagonal rings is designed to match the second-order filter circuit under the guidance from circuits to metasurfaces. The ESS performs a nonlinear response for the low-power and high-power incident microwaves. The operating properties of the ESS are generated by the interlayer resonance of nonresonant capacitive patches and inductive octagonal rings. Circuit and full-wave simulations are conducted, respectively, and their results show relatively good consistency. Meanwhile, two ESS prototypes are fabricated, and experiments are conducted under different incident power levels in WR-137 and WR-90 waveguides. According to the simulated and experimental results, the proposed ESS has a wide 1 dB operational band covering 5.8–9.0 GHz for low-power incident wave, and high shielding effectiveness of 22 dB under high-power microwave. Particularly, the maximum SE reaches up to 25.7 dB at 9 GHz. This article provides a feasible and promising method for providing strong electromagnetic protection for broadband electronic devices.
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来源期刊
CiteScore
4.80
自引率
19.00%
发文量
235
审稿时长
2.3 months
期刊介绍: IEEE Transactions on Electromagnetic Compatibility publishes original and significant contributions related to all disciplines of electromagnetic compatibility (EMC) and relevant methods to predict, assess and prevent electromagnetic interference (EMI) and increase device/product immunity. The scope of the publication includes, but is not limited to Electromagnetic Environments; Interference Control; EMC and EMI Modeling; High Power Electromagnetics; EMC Standards, Methods of EMC Measurements; Computational Electromagnetics and Signal and Power Integrity, as applied or directly related to Electromagnetic Compatibility problems; Transmission Lines; Electrostatic Discharge and Lightning Effects; EMC in Wireless and Optical Technologies; EMC in Printed Circuit Board and System Design.
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