Abstract
We present a wearable RFID tag implemented on a fabric, comprising four alphabet texts embroidered by conductive threads. The tag is optimized to provide a conjugate match to the RFID chip impedance at the operation frequency, 910 MHz. Various tags with different stitching patterns and thread diameters are examined in simulation and a number of tags are measured using two-port differential probe suitable for balanced tag structures. The measured results of tag impedance show good agreements to the simulation results with slight errors caused by imperfection in probe calibration.
| Original language | English |
|---|---|
| Pages (from-to) | 1978-1984 |
| Number of pages | 7 |
| Journal | Microwave and Optical Technology Letters |
| Volume | 58 |
| Issue number | 8 |
| DOIs | |
| State | Published - 1 Aug 2016 |
Keywords
- antenna
- conductive threads
- impedance measurement
- RFID
- wearable antenna