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一种基于石墨烯组装膜的低剖面四频段偏振不敏感超材料吸波器。

A Quad-Band and Polarization-Insensitive Metamaterial Absorber with a Low Profile Based on Graphene-Assembled Film.

作者信息

Jin Shiyi, Zu Haoran, Qian Wei, Luo Kaolin, Xiao Yang, Song Rongguo, Xiong Bo

机构信息

School of Science, Wuhan University of Technology, Wuhan 430070, China.

Hubei Engineering Research Center of RF-Microwave Technology and Application, Wuhan University of Technology, Wuhan 430070, China.

出版信息

Materials (Basel). 2023 Jun 4;16(11):4178. doi: 10.3390/ma16114178.

DOI:10.3390/ma16114178
PMID:37297312
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10254141/
Abstract

A quad-band metamaterial absorber using a periodically arranged surface structure placed on an ultra-thin substrate is demonstrated in this paper. Its surface structure consists of a rectangular patch and four L-shaped structures distributed symmetrically. The surface structure is able to have strong electromagnetic interactions with incident microwaves, thereby generating four absorption peaks at different frequencies. With the aid of the near-field distributions and impedance matching analysis of the four absorption peaks, the physical mechanism of the quad-band absorption is revealed. The usage of graphene-assembled film (GAF) provides further optimization to increase the four absorption peaks and promotes the low-profile characteristic. In addition, the proposed design has good tolerance to the incident angle in vertical polarization. The proposed absorber in this paper has the potential for filtering, detection, imaging, and other communication applications.

摘要

本文展示了一种使用周期性排列的表面结构并置于超薄衬底上的四频段超材料吸波器。其表面结构由一个矩形贴片和四个对称分布的L形结构组成。该表面结构能够与入射微波产生强烈的电磁相互作用，从而在不同频率处产生四个吸收峰。借助对四个吸收峰的近场分布和阻抗匹配分析，揭示了四频段吸收的物理机制。石墨烯组装膜（GAF）的使用进一步优化，增加了四个吸收峰，并提升了低剖面特性。此外，所提出的设计对垂直极化的入射角具有良好的耐受性。本文所提出的吸波器在滤波、检测、成像及其他通信应用方面具有潜力。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b6c5/10254141/ddc0e5d889f9/materials-16-04178-g013.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b6c5/10254141/58bd9d341d27/materials-16-04178-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b6c5/10254141/ee8fd4581a56/materials-16-04178-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b6c5/10254141/0835e247852e/materials-16-04178-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b6c5/10254141/3ffcd56fd37f/materials-16-04178-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b6c5/10254141/c9d887031984/materials-16-04178-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b6c5/10254141/803fb0772060/materials-16-04178-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b6c5/10254141/2c532cecb7b7/materials-16-04178-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b6c5/10254141/a4d2d2f94bb8/materials-16-04178-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b6c5/10254141/a3472b496565/materials-16-04178-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b6c5/10254141/38677478d863/materials-16-04178-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b6c5/10254141/3b484b93fc6b/materials-16-04178-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b6c5/10254141/d93ff227f2ec/materials-16-04178-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b6c5/10254141/ddc0e5d889f9/materials-16-04178-g013.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b6c5/10254141/58bd9d341d27/materials-16-04178-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b6c5/10254141/ee8fd4581a56/materials-16-04178-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b6c5/10254141/0835e247852e/materials-16-04178-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b6c5/10254141/3ffcd56fd37f/materials-16-04178-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b6c5/10254141/c9d887031984/materials-16-04178-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b6c5/10254141/803fb0772060/materials-16-04178-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b6c5/10254141/2c532cecb7b7/materials-16-04178-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b6c5/10254141/a4d2d2f94bb8/materials-16-04178-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b6c5/10254141/a3472b496565/materials-16-04178-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b6c5/10254141/38677478d863/materials-16-04178-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b6c5/10254141/3b484b93fc6b/materials-16-04178-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b6c5/10254141/d93ff227f2ec/materials-16-04178-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b6c5/10254141/ddc0e5d889f9/materials-16-04178-g013.jpg

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