Novel QR-incorporated chipless RFID tag

Abstract

This work ideates a novel approach for designing a QR-incorporated data encoding structure that functions as a fully-passive, chipless radio frequency identification (RFID) tag. Several concentric square-shaped resonant slots embedded strategically within a QR-patterned region constitute the tag. A functional prototype is realized over an ungrounded Duroid ® 5880 substrate, and the same is evaluated for its electromagnetic performance. The tag performs encoding of up to 118 data bits distributed across spectral and optical domain in a compact form factor measuring 55 × 55 mm 2. Possible applications of the formulated tag include multi-layer authentication for secure access control in smart cities and connected homes.

Design and analysis of a truncated elliptical-shaped chipless RFID tag

“…involving a complex mechanism of labeling and reading of QR code is presented in [30]. A 06 bit square looped tag having a bit density of 0.24 bit/cm 2 is represented in [31].…”

Chipless RFID based multi-sensor tag for printed electronics

“… Ref. Dimension (cm 2 ) Bit Capacity (Bits) Bit Density (Bits/cm 2 ) Polarization Insensitive Printability Flexibility Sensing Frequency Band (GHz) Year [ 19 ] 6 50 8.33 N/A Yes ✗ ✗ 60 2014 [ 20 ] 6.15 13 2.11 Yes Yes ✓ ✗ 3.1–10.6 2018 [ 21 ] 15.6 22 1.41 No Yes ✓ ✗ 2.4–4.1 2022 [ 22 ] 30.25 8 3.90 No Yes ✓ ✗ 5–13 2019 [ 23 ] 1.41 20 15.15 No Yes ✓ ✗ 3–8 2019 [ 24 ] 3.65 10 2.74 …”