Miniature I-shaped Patch for Metal-mountable UHF RFID Tag Design
- Resource Type
- Conference
- Authors
- Ripin, N.; Zamil, N.; Ansari, M. N. M; Nordin, N. A.; Aziz, A. A.; Lim, Eng-Hock
- Source
- 2021 IEEE Asia-Pacific Conference on Applied Electromagnetics (APACE) Applied Electromagnetics (APACE), 2021 IEEE Asia-Pacific Conference on. :1-4 Dec, 2021
- Subject
- Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Fields, Waves and Electromagnetics
Signal Processing and Analysis
Integrated circuits
Surface impedance
Surface resistance
Impedance matching
Power transmission
Metals
UHF antennas
I-shaped antenna
folded tag
T-slot
RFID
metal-mountable
- Language
A novel structure consists of an I-shaped radiating patch with double T-slots is designed for ultra-high frequency (UHF) radio frequency identification (RFID) tag that can be used for mountable metal tagging. The T-slots on the radiating patch increase the electrical current path resulting in size miniaturization. The radiating patch is shorted to the ground plane using an inductive stub, where the inductive stub is useful for frequency tuning. The proposed tag is low in profile and has a compact size of 43.45 mm × 43.45, equivalent to 0.133λ ×0.133λ at 920 MHz. It provides sufficient resistance and inductive reactance for achieving conjugate impedance matching with the microchip. The proposed tag offers a good power transmission coefficient and a theoretical read range of 8.4 m with an EIPR of 4 W when mounted on a metallic surface.