Circularly polarized passive UHF RFID Tag on Wall for Indoor Object Identification and Localization

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 embedde...

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Bibliographic Details
Published in2014 International Conference on Advanced Technologies for Communications (ATC 2014) pp. 48 - 53
Main Authors Thao-Phuong Dong, Minh-Thuy Le, Quoc-Cuong Nguyen, Coelho, Aline, Tan-Phu Vuong
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.10.2014
Subjects
Antennas
circular polarization
Gain
indoor localization
Microstrip
passive RFID tag
radio frequency identification (RFID)
Radiofrequency identification
Resonant frequency
Simulation
Substrates
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Summary: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.
ISBN:1479969559
9781479969555
ISSN:2162-1020
2162-1039
DOI:10.1109/ATC.2014.7043354