ENG and NZRI Characteristics of Decagonal-Shaped Metamaterial for Wearable Applications

2020 International Conference on UK-China Emerging Technologies (UCET) Pub Date : 2020-08-01 DOI:10.1109/UCET51115.2020.9205409

K. Hossain, T. Sabapathy, M. Jusoh, P. Soh, A. F. M. Fazilah, Ahmad Ashraf Abdul Halim, N. S. Raghava, S. Podilchak, D. Schreurs, Q. Abbasi

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引用次数: 4

Abstract

A decagonal-shaped split ring resonator metamaterial based on a wearable or textile-based material is presented in this work. Analysis and comparison of various structure sizes are compared considering a compact $6\times 6\ \mathrm{m}\mathrm{m}^{2}$ metamaterial unit cell, in particular, where robust transmission-reflection (RTR) and Nicolson-Ross-Weir (NRW) methods have been performed to extract the effective metamaterial parameters. An investigation based on the RTR method indicated an average bandwidth of 1.39 GHz with a near-zero refractive index (NZRI) and a 2.35 GHz bandwidth when considering epsilon negative (ENG) characteristics. On the other hand, for the NRW method, approximately 0.95 GHz of NZRI bandwidth and 2.46 GHz of ENG bandwidth have been observed, respectively. These results are also within the ultra-wideband (UWB) frequency range, suggesting that the proposed unit cell structure is suitable for textile UWB antennas, biomedical sensors, related wearable systems, and other wireless body area network communication systems.

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用于可穿戴设备的十边形超材料的ENG和NZRI特性

提出了一种基于可穿戴材料或纺织材料的十棱形裂环谐振器超材料。考虑到紧凑的$6\ × 6\ \ mathm {m}\ mathm {m}^{2}$超材料单元电池，对各种结构尺寸进行了分析和比较，特别是采用鲁棒透射-反射(RTR)和Nicolson-Ross-Weir (NRW)方法提取了有效的超材料参数。基于RTR方法的研究表明，在折射率接近为零(NZRI)的情况下，平均带宽为1.39 GHz，考虑负epsilon (ENG)特性时，平均带宽为2.35 GHz。另一方面，对于NRW方法，分别观测到大约0.95 GHz的NZRI带宽和2.46 GHz的ENG带宽。这些结果也在超宽带(UWB)频率范围内，表明所提出的单位细胞结构适用于纺织UWB天线，生物医学传感器，相关可穿戴系统和其他无线体域网络通信系统。

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2020 International Conference on UK-China Emerging Technologies (UCET)

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