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E-textile slot antenna with spurious mode suppression and low SAR for medical wearable applications
Journal of Electromagnetic Waves and Applications ( IF 1.3 ) Pub Date : 2021-06-01 , DOI: 10.1080/09205071.2021.1934905
Arpan Shah 1 , Piyush Patel 1
Affiliation  

In this paper, electronic textile (E-textile) antenna design, with spurious mode suppression and low specific absorption rate (SAR), at a nearest distance of 1 mm from on-body phantom is investigated. The textile antenna is designed using a denim substrate material with conductive patch as a radiating element. The slots are introduced on the patch for spurious mode suppression so that external radio frequency components can be integrated with textile antenna without hampering the efficiency of the body area network system. The measured bandwidth of the proposed antenna is 100 MHz (2.39–2.49 GHz) in the 2.45 GHz ISM frequency band with broadside radiation pattern. The radiation pattern at spurious mode is suppressed by 5 dB without any change in the resonance frequency of fundamental mode. Besides, considering human safety for wearable devices, the SAR values average over 1 g of tissue are 0.208, 0.106 and 0.087 W/Kg at a distance of 1, 3 and 5 mm from on-body phantom, respectively.



中文翻译:

用于医疗可穿戴应用的具有杂散模式抑制和低 SAR 的电子纺织品缝隙天线

在本文中,研究了电子纺织品 (E-textile) 天线设计,其具有杂散模式抑制和低比吸收率 (SAR),距离人体模型最近距离为 1 mm。纺织天线的设计使用带有导电贴片的牛仔布基材作为辐射元件。在贴片上引入缝隙以抑制杂散模式,以便外部射频组件可以与纺织天线集成,而不会影响体域网系统的效率。建议天线的测量带宽在 2.45 GHz ISM 频带中为 100 MHz (2.39–2.49 GHz),具有宽边辐射模式。杂散模式下的辐射模式被抑制了 5 dB,而基模的谐振频率没有任何变化。此外,考虑到可穿戴设备的人身安全,

更新日期:2021-06-01
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