Wearable Textile Antenna With Low SAR and High Fidelity for BAN and Medical Applications

IF 1.6 4区 工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC
Raghav Dwivedi, D. K. Srivastava, Vinod Kumar Singh
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引用次数: 0

Abstract

This paper presents a novel wearable antenna fabricated using denim material, designed for flexible electronics and medical monitoring applications. The proposed antenna leverages common jean fabric as the substrate material, offering a cost-effective and readily available solution while combining esthetic appeal with practical functionality through its unique configuration. Operating across 2.269–19.42 GHz with a maximum gain of 6.75 dB, the antenna achieves an enhanced bandwidth of 158.15%. Notably, the design measured as 0.488λo× 0.488λo × 0.008λo exhibits a low specific absorption rate (SAR) compared to FCC standards that is 1.6 W/kg averaged over 1 g of tissue, making it particularly suitable for medical monitoring applications. We obtained a maximum SAR value for the antenna as 1.61, 1.01 W/kg for 1 and 10 g at 2 mm from the body phantom, 0.488 and 0.769 W/kg for 1 and 10 g when placed at 5 mm from the human phantom, and 1.02, 0.73 W/kg for 1 and 10 g at on-body placement of the antenna. Experimental results demonstrate the antenna's effectiveness for vital signs surveillance while maintaining wearer safety and comfort. The use of denim as the substrate material not only ensures flexibility and durability but also provides an eco-friendly approach by utilizing common textile materials. The high-fidelity factor and wideband characteristics ensure reliable data transmission, making this design a promising solution for next-generation wearable healthcare devices.

用于BAN和医疗应用的低SAR高保真可穿戴纺织天线
本文提出了一种新型的可穿戴天线,采用牛仔布材料制成,设计用于柔性电子和医疗监测应用。该天线利用普通牛仔织物作为基板材料,通过其独特的配置将美学吸引力与实用功能结合起来,提供了一种具有成本效益且易于获得的解决方案。该天线工作在2.269-19.42 GHz之间,最大增益为6.75 dB,实现了158.15%的带宽增强。值得注意的是,该设计的测量值为0.488λo × 0.488λo × 0.008λo,与FCC标准的1.6 W/kg平均超过1 g组织相比,显示出较低的比吸收率(SAR),使其特别适合医疗监测应用。我们获得的天线最大SAR值分别为:距离人体幻影2毫米处1和10克时的1.61、1.01 W/kg,距离人体幻影5毫米处1和10克时的0.488和0.769 W/kg,距离人体1和10克时的1.02、0.73 W/kg。实验结果表明,该天线在保持佩戴者安全和舒适的同时,对生命体征监测是有效的。使用牛仔布作为衬底材料不仅确保了灵活性和耐用性,而且通过使用常见的纺织材料提供了一种环保的方法。高保真度因素和宽带特性确保可靠的数据传输,使该设计成为下一代可穿戴医疗保健设备的有前途的解决方案。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
4.60
自引率
6.20%
发文量
101
审稿时长
>12 weeks
期刊介绍: Prediction through modelling forms the basis of engineering design. The computational power at the fingertips of the professional engineer is increasing enormously and techniques for computer simulation are changing rapidly. Engineers need models which relate to their design area and which are adaptable to new design concepts. They also need efficient and friendly ways of presenting, viewing and transmitting the data associated with their models. The International Journal of Numerical Modelling: Electronic Networks, Devices and Fields provides a communication vehicle for numerical modelling methods and data preparation methods associated with electrical and electronic circuits and fields. It concentrates on numerical modelling rather than abstract numerical mathematics. Contributions on numerical modelling will cover the entire subject of electrical and electronic engineering. They will range from electrical distribution networks to integrated circuits on VLSI design, and from static electric and magnetic fields through microwaves to optical design. They will also include the use of electrical networks as a modelling medium.
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