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Washing Durability of PDMS-Conductive Fabric Composite Realizing Washable UHF RFID Tags

Abstract : In this letter, we present experimental investigations on washing durability of a polydimethylsiloxane (PDMS)-conductive fabric composite to validate its applicability for the realization of flexible wearable antennas that can withstand multiple washing cycles. For this purpose, we designed an ultrahigh-frequency (UHF) radio frequency identification (RFID) passive tag antenna and fabricated several prototypes using such materials combination. Understanding the challenge of having a robust integration of a lumped electronic component (e.g., RFID IC) on a flexible antenna, a new way to improve the interconnection has also been investigated. The tag prototypes were subjected to recurrent machine-washing tests, and after each washing cycle, their performance was analyzed mainly in terms of the read range. The results reveal that, with a proper treatment on the antenna-IC fixture interconnection, the tag antennas developed with the PDMS-conductive fabric composite can maintain their performance very well, showing a minimum degradation in the read range after 15 cycles of washing. © 2002-2011 IEEE.
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R.B.V.B. Simorangkir, D. Le, T. Bjorninen, A.S.M. Sayem, M. Zhadobov, et al.. Washing Durability of PDMS-Conductive Fabric Composite Realizing Washable UHF RFID Tags. IEEE Antennas and Wireless Propagation Letters, Institute of Electrical and Electronics Engineers, 2019, 18 (12), pp.2572-2576. ⟨10.1109/LAWP.2019.2943535⟩. ⟨hal-02442764⟩

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