Abstract
A new small on-metal UHF Radio Frequency Identification
(RFID) transponder, 18 mm * 4 mm * 2 mm in size, is
presented. The read range of the transponder has been
optimized by using the most efficient radiator within the
given maximum dimensions and even more importantly, by
conjugate impedance matching between the small antenna
and the microchip, which has been achieved by using
antenna-integrated components. As a commercially viable
solution is targeted, the bandwidth and the sensitivity
of the antenna to the dimensional variation of the
fabrication process have been studied and solutions for
improved robustness are presented. After the study and
optimization of the transponder, a series of prototypes
was fabricated on printed circuit board. The measurement
results of the prototypes showed good consistency with
the simulations and a read range of 3.0 m was measured
for a prototype mounted on a metal plate.
| Original language | English |
|---|---|
| Pages (from-to) | 4859-4867 |
| Journal | IEEE Transactions on Antennas and Propagation |
| Volume | 64 |
| Issue number | 11 |
| DOIs | |
| Publication status | Published - 2016 |
| MoE publication type | A1 Journal article-refereed |
Keywords
- item-level tagging
- on-metal transponder
- PCB antennas
- small antennas
- small transponder
- UHF RFID
- OtaNano