Khalil Muhammad Amir, Yong Wong Hin, Islam Md Shabiul, Chiong Lo Yew, Hoque Ahasanul, Ullah Najeeb, Goh Hui Hwang, Kurniawan Tonni Agustiono, Soliman Mohamed S, Islam Mohammad Tariqul
Faculty of Engineering, Multimedia University, 63100, Cyberjaya, Selangor, Malaysia.
Institut Perubahan Iklim, Universiti Kebangsaan Malaysia (UKM), 43600, Bangi, Malaysia.
Sci Rep. 2024 Nov 4;14(1):26609. doi: 10.1038/s41598-024-77215-x.
This paper presents the detailed design configuration and investigation of a small-scale dual-band metamaterial absorber (MTMA) for solid and liquid sensing applications. The overall dimension of the MTMA unit cell is 10 × 10 × 1.57 mm and constitutes an affordable FR-4 substrate. The absorber exhibits dual absorption peaks at 3.470 GHz for the S-band and 7.219 GHz for the C-band, respectively. Both absorption characteristics have been validated through comprehensive simulation and experimental procedures. The dual-band absorption rate exceeded 99% during simulations, and experimental validation showed an absorption rate above 98%. For sensing applications, various solid materials, including different Rogers substrates ( RT 5880, RT 5870, RT 4003 and RT 4835) and liquids such as sunflower and crown oil, were utilized. Our findings indicate that the proposed MTMA achieves a maximum Q-factor of 191 and a sensitivity of up to 2.5 for both solid and liquid sensing applications compared to previous studies. The simulation and experimental validation of the result indicate that suggested MTMA can be effectively used in different sensing applications such as the medical and communications industry.
本文介绍了一种用于固体和液体传感应用的小型双频超材料吸收器（MTMA）的详细设计结构及研究。MTMA单元的整体尺寸为10×10×1.57毫米，由价格实惠的FR-4基板构成。该吸收器在S波段3.470GHz和C波段7.219GHz处分别呈现双吸收峰。这两种吸收特性均通过全面的模拟和实验程序得到了验证。模拟过程中双频吸收率超过99%，实验验证显示吸收率高于98%。在传感应用中，使用了各种固体材料，包括不同的罗杰斯基板（RT 5880、RT 5870、RT 4003和RT 4835）以及向日葵油和皇冠油等液体。我们的研究结果表明，与之前的研究相比，所提出的MTMA在固体和液体传感应用中实现了高达191的最大品质因数和高达2.5的灵敏度。结果的模拟和实验验证表明，所建议的MTMA可有效应用于医疗和通信行业等不同的传感应用中。
