Farooqui, Muhammad Fahad
Bilal, Rana Muhammad
KAUST DepartmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
Integrated Microwave Packaging Antennas and Circuits Technology (IMPACT) Lab
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AbstractDespite the abundance of localization applications, the tracking devices have never been truly realized in E-textiles. Standard printed circuit board (PCB)-based devices are obtrusive and rigid and hence not suitable for textile based implementations. An attractive option would be direct printing of circuit layout on the textile itself, negating the use of rigid PCB materials. However, high surface roughness and porosity of textiles prevents efficient and reliable printing of electronics on textile. In this work, by printing an interface layer on the textile first, a complete localization circuit integrated with an antenna has been inkjet-printed on the textile for the first time. Printed conductive traces were optimized in terms of conductivity and resolution by controlling the number of over-printed layers. The tracking device determines the wearer's position using WiFi and this information can be displayed on any internet-enabled device, such as smart phone. The device is compact (55mm×45mm) and lightweight (22g with 500mAh battery) for people to comfortably wear it and can be easily concealed in case discretion is required. The device operates at 2.4GHz communicated up to a distance of 55m, with localization accuracy of up to 8m.
CitationKrykpayev B, Farooqui MF, Bilal RM, Vaseem M, Shamim A (2017) A wearable tracking device inkjet-printed on textile. Microelectronics Journal 65: 40–48. Available: http://dx.doi.org/10.1016/j.mejo.2017.05.010.
SponsorsWe acknowledge financial support from King Abdullah University of Science and Technology (KAUST) Office of Sponsored Research (OSR).