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This paper presents a washing reliability study of passive UHF RFID textile tags with three different coating materials. The tag antennas were fabricated by brush-painting silver ink on a 100 % cotton fabric. After attaching the ICs, the ready RFID tags were fully coated with three different protective coating materials: regular textile glue, epoxy coating, and silicone rubber. The coated tags were...
Wearable passive UHF RFID tags have enormous potential in future body-centric wireless communication and sensing systems, which have countless applications for example in the welfare and health care sectors. Antenna-IC joints in these wireless components are usually the critical parts from the reliability point of view and they operate in an extremely challenging environment. In this study, we demonstrate...
In this paper, we study the wireless response and reliability of graphene-based passive UHF RFID tags in high humidity conditions. The functional graphene ink is deposited directly on cardboard substrate to fabricate the RFID tag and the tag performance is evaluated through wireless tag measurements before and after high humidity conditions. Initially the peak read range of the tag is about 2.7 meters,...
Electrically conductive textiles are an enabling technology for the future wearable healthcare. In this work, we investigate the impact of antenna-fiber alignment and recurrent stretching on the performance of passive UHF RFID tags based on screen printed and conductive-fabric antennas. Our results show that on the non-uniform fibrous textiles, the antenna-fiber alignment is an important factor for...
In the rapidly evolving world of innovations and development, there is a growing need to have efficient and reliable communication systems. Wireless communication has gained great importance in recent years [1]. It has enabled the development of new wireless technologies such as auto-identification, mobile communications, global positioning, satellite, and other digital communication systems for various...
This paper presents laboratory-scale methods for attaching integrated circuits (ICs) to passive ultra high frequency (UHF) radio frequency identification (RFID) antennas and discusses the effects of the attaching methods on tag performance. Commercial passive UHF RFID ICs were used. The studied attachment methods were strap attachment and direct IC attachment. One antenna design was developed for...
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