Circularly polarized passive UHF RFID Tag on Wall for Indoor Object Identification and Localization
- Resource Type
- Conference
- Authors
- Dong, Thao-Phuong; Le, Minh-Thuy; Nguyen, Quoc-Cuong; Coelho, Aline; Vuong, Tan-Phu
- Source
- 2014 International Conference on Advanced Technologies for Communications (ATC 2014) Advanced Technologies for Communications (ATC), 2014 International Conference on. :48-53 Oct, 2014
- Subject
- Bioengineering
Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Computing and Processing
Fields, Waves and Electromagnetics
Robotics and Control Systems
Signal Processing and Analysis
Radiofrequency identification
Antennas
Resonant frequency
Simulation
Substrates
Gain
Microstrip
radio frequency identification (RFID)
circular polarization
passive RFID tag
indoor localization
- Language
- ISSN
- 2162-1020
2162-1039
In this paper, a square-shaped microstrip passive RFID tag suitable for wall mount in RFID localization systems is presented. The tag antenna is designed for the ultra-high frequency (UHF) band and is excited by a dual inset feed network to achieve circular polarization (CP). A cross slot is embedded in the square patch to reduce antenna size and extend CP bandwidth. Characterization in an anechoic chamber shows that the prototype's operational frequency band is significantly shifted compared to the simulation results. Nevertheless, when tested in the laboratory hallway with a standard UHF RFID reader, the tag still provides good reading range and decent CP performance in certain degrees of rotation.