Experimental study on strain reliability of embroidered passive UHF RFID textile tag antennas and interconnections

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

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  • Xiaochen Chen
  • Aruhan Liu
  • Zhigang Wei
  • Leena Ukkonen
  • Johanna Virkki

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Original languageEnglish
Article number8493405
Journal / PublicationJournal of Engineering (United States)
Online published2 Feb 2017
Publication statusPublished - 2017



We present embroidered antennas and interconnections in passive UHF RFID textile tags and test their strain reliability. Firstly, we fabricate tag antennas on two different stretchable fabric substrates by five different embroidery patterns and choose the most stretchable ones for testing. Next, the tag ICs are attached by sewing and gluing, and the tag reliability during repeated stretching cycles is evaluated through wireless measurements. Initially, the chosen tags achieve read ranges of 6-8 meters and can strain up to 140-150% of their original length. After 100 stretching cycles to 80% of their maximum strain, the read ranges of the tags with glued interconnections are similar to the initial values. In addition, also the read ranges of the tags with sewed interconnections are still more than 70%-85% of their initial values. However, some challenges with the reproducibility need to be solved next.

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