An 868 MHz Bandage Type Antenna using Aluminum conductor and PDMS substrate

2022 International Workshop on Antenna Technology (iWAT) Pub Date : 2022-05-16 DOI:10.1109/iWAT54881.2022.9811086

Sanjeev Kumar, R. Simorangkir, Dinesh R. Gawade, A. Quinn, B. O’flynn, J. Buckley

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Abstract

This paper presents an 868 MHz ultra-high frequency (UHF) bandage-type antenna for wireless body sensor network applications. The proposed antenna has a modified planar rectangular patch antenna topology and is realized using aluminum metalization and a flexible polydimethylsiloxane (PDMS) substrate. The performance characteristics of the antenna have been investigated through electromagnetic simulations and measurements on a human body phantom arm. The proposed antenna achieves a bandwidth of 11 MHz which is 57 % wider than the required bandwidth for the European LoRaWAN 868 MHz band operation. When compared to bandage-type Sub-GHz antennas reported in the literature, the proposed antenna exhibits desired gain and efficiency performance. Furthermore, the developed antenna demonstrates a low 10-g averaged SAR figure of 0.82 W/kg when 25 mW input power is supplied. The achieved impedance and radiation characteristics make the proposed antenna suitable for a wide range of body-worn wireless health monitoring applications.

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采用铝导体和PDMS衬底的868 MHz绷带式天线

本文提出了一种868兆赫特高频绷带型天线，用于无线身体传感器网络。该天线具有改进的平面矩形贴片天线拓扑结构，采用铝金属化和柔性聚二甲基硅氧烷(PDMS)衬底实现。通过对人体幻臂的电磁仿真和测量，对天线的性能特性进行了研究。该天线实现了11 MHz的带宽，比欧洲LoRaWAN 868 MHz频段操作所需的带宽宽57%。与文献中报道的绷带型Sub-GHz天线相比，所提出的天线具有理想的增益和效率性能。此外，当输入功率为25 mW时，所开发的天线显示出0.82 W/kg的低10 g平均SAR值。所获得的阻抗和辐射特性使所提出的天线适用于广泛的穿戴式无线健康监测应用。

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

2022 International Workshop on Antenna Technology (iWAT)

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