Design of a planar slot tag antennas with circular polarization for ultra‐high frequency radio frequency identification applications

Design of a planar slot tag antennas with circular polarization for ultra‐high frequency radio frequency identification applications

Slot radio frequency identification (RFID) Tag antennas designed for ultra‐high frequency (UHF) band are presented. Two orthogonal slots are used to achieve circular polarization (CP). By selecting an appropriate length of feed‐lines, the input impedance of the tag antenna can be controlled. Experim...

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Veröffentlicht in:Microwave and optical technology letters 2019-02, Vol.61 (2), p.303-308
Hauptverfasser: Ben Abdallah, Essia, Egels, Matthieu, Bergeret, Emmanuel, Benzaim, Oussama, Pannier, Philippe
Format: Artikel
Sprache:eng
Schlagworte:
Antennas
Automatic identification
Circular polarization
Electromagnetism
Electronics
Engineering Sciences
High frequencies
Input impedance
Radio frequency identification
reading distance
RFID UHF
tag antenna
Very high frequencies
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Zusammenfassung:Slot radio frequency identification (RFID) Tag antennas designed for ultra‐high frequency (UHF) band are presented. Two orthogonal slots are used to achieve circular polarization (CP). By selecting an appropriate length of feed‐lines, the input impedance of the tag antenna can be controlled. Experimental results show a good reading range between 9 m and 10 m. A wide band CP band was measured. The design procedure for the proposed antennas are described and the performances are presented and discussed.
ISSN:0895-2477
1098-2760
DOI:10.1002/mop.31573