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用于传感应用的基于体心双正方形分裂环包围嵌套曲折线形超材料加载微带的谐振器

Body-Centered Double-Square Split-Ring Enclosed Nested Meander-Line-Shaped Metamaterial-Loaded Microstrip-Based Resonator for Sensing Applications.

作者信息

Siddiky Air Mohammad, Faruque Mohammad Rashed Iqbal, Islam Mohammad Tariqul, Abdullah Sabirin, Khandaker Mayeen Uddin, Tamam Nissren, Sulieman Abdelmoneim

机构信息

Space Science Centre (ANGKASA), Institute of Climate Change (IPI), Universiti Kebangsaan Malaysia, Bangi 43600, Malaysia.

Department of Electrical, Electronic & Systems Engineering, Universiti Kebangsaan Malaysia, Bangi 43600, Malaysia.

出版信息

Materials (Basel). 2022 Sep 6;15(18):6186. doi: 10.3390/ma15186186.

Abstract

The strong localization of the electric and magnetic fields in metamaterial-based structures has attracted a new era of radiation fields in the microwave range. In this research work, we represent a double split ring enclosed nested meander-line-shaped metamaterial resonator with a high effective medium ratio layered on a dielectric substrate to enhance the sensitivity for the material characterization. Tailoring a metallic design and periodical arrangement of the split ring resonator in a subwavelength range introduced field enhancement and strong localization of the electromagnetic field. The design methodology is carried out through the optimization technique with different geometric configurations to increase the compactness of the design. The CST microwave studio is utilized for the extraction of the scattering computational value within the defined boundary condition. The effective parameters from the reflection and transmission coefficient are taken into account to observe the radiation characteristics for the interaction with the applied electromagnetic spectrum. The proposed metamaterial-based sensor exhibits high sensitivity for different dielectric materials with low permittivity values. The numerical data of the frequency deviation for the different dielectric constants have shown good agreement using the linear regression analysis where the sensitivity is R = 0.9894 and the figure of merit is R = 0.9978.

摘要

基于超材料的结构中电场和磁场的强烈局域化开启了微波波段辐射场的新时代。在这项研究工作中,我们展示了一种双分裂环包围的嵌套曲折线形状的超材料谐振器,其具有高有效介质比,并层叠在介电基片上,以提高材料表征的灵敏度。在亚波长范围内定制分裂环谐振器的金属设计和周期性排列可引入场增强和电磁场的强烈局域化。设计方法是通过具有不同几何构型的优化技术来实现的,以提高设计的紧凑性。利用CST微波工作室在定义的边界条件下提取散射计算值。考虑反射和传输系数的有效参数,以观察与应用电磁频谱相互作用的辐射特性。所提出的基于超材料的传感器对具有低介电常数的不同介电材料表现出高灵敏度。使用线性回归分析,不同介电常数的频率偏差数值数据显示出良好的一致性,其中灵敏度为R = 0.9894,品质因数为R = 0.9978。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8619/9503153/8c4f092866cd/materials-15-06186-g001.jpg

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