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On the Effect of Sweat on Sheet Resistance of Knitted Conductive Yarns in Wearable Antenna Design
Journal article   Open access

On the Effect of Sweat on Sheet Resistance of Knitted Conductive Yarns in Wearable Antenna Design

Md Abu Saleh Tajin, Ariana S Levitt, Yuqiao Liu, Chelsea E Knittel, Caroline L Schauer, Genevieve Dion and Kapil R Dandekar
IEEE antennas and wireless propagation letters, v 19(4), pp 1-1
31 Jan 2020
url
https://doi.org/10.1109/lawp.2020.2971189View
Accepted (AM)Open Access (Publisher-Specific) Open

Abstract

Resistance Antenna measurements digital fabrication sheet resistance silver-coated nylon Transmission line measurements RFID Fabrics Copper Textile antennas Yarn Antennas
Researchers are looking for new methods to integrate sensing capabilities into textiles while maintaining the durability, flexibility, and comfort of the garment. One method for imparting sensing capabilities into garments is through coupling conductive yarns with Radio Frequency Identification (RFID) technology. These smart devices have exhibited promising results for short-term use. However, long-term studies of their performance are still needed to evaluate their performance over a longer period. Like all garments, wearable sensors are susceptible to environmental factors during use. These factors can lead to dielectric coupling and corrosion of conductive yarns, which has the potential to degrade the performance of the device. This work analyzes the effect of sweat and moisture on silvercoated nylon yarn by extracting the sheet resistance at 913MHz from transmission line measurements. HFSS simulation shows the level of perturbation in antenna performance as sheet resistance increased with each cycle of sweat-immersion, washing, and drying.

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Web of Science research areas
Engineering, Electrical & Electronic
Telecommunications
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