Fabrication and reliability evaluation of passive UHF RFID T-shirts

Chen, X.; He, H.; Ukkonen, L.; Virkki, J.; Lu, Y.; Lam, H. (2018-06-08)
 
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Chen, X.
He, H.
Ukkonen, L.
Virkki, J.
Lu, Y.
Lam, H.
08.06.2018

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doi:10.1109/IWAT.2018.8379146
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https://urn.fi/URN:NBN:fi:tuni-202101151378

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In this paper, we present textile antennas fabricated for T-shirt RFID applications by cutting from commercially available electro-textile, by sewing with conductive thread, and by 3D printing with stretchable silver ink on a 100 % cotton fabric. The ready tags with attached ICs are coated with a protective stretchable encapsulant. The wireless performance of the T-shirt tags is evaluated initially as well as after seven washing cycles, followed by nine washing-drying cycles in a household washing and drying machines. The initial read ranges of all kinds of tags, when measured on-body, are around 3.5 meters. Based on the reliability testing results, the coating effectively protects the components from cyclic washing and drying.

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