Frequency-Coded Chipless RFID Tag Based on Dual-Band Resonators

Author

Girbau, David ; Lorenzo, Javier ; Lázaro, Antonio ; Ferrater, Carles ; Villarino, Ramón

Author_Institution

Electron., Electr. & Autom. Control Eng. Dept., Univ. Rovira i Virgili, Tarragona, Spain

Volume

11

fYear

2012

fDate

7/4/1905 12:00:00 AM

Firstpage

126

Lastpage

128

Abstract

The integration of dual-band resonators in frequency-coded chipless RFID tags is proposed in this letter. It is demonstrated that 3N words can be coded in a tag when using N stub-loaded dual-band resonators. It is also shown that an operation bandwidth improvement is achieved in comparison to the use of conventional half-wavelength resonators. A theoretical analysis of the resonator is provided, and a four-resonator tag is designed, manufactured, and measured as a proof of concept. Two processing techniques are used to improve detection and increase the read range: calibration and time gating.

Keywords

codes; radiofrequency identification; resonators; 3N word; conventional half wavelength resonator; dual band resonators; four resonator tag; frequency coded chipless RFID tag; Bandwidth; Calibration; Dual band; Frequency measurement; Radiofrequency identification; Resonant frequency; Transmission line measurements; Chipless; dual-band resonator; radio frequency identification (RFID); ultrawideband (UWB);

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2012.2185032

Filename

6134632