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Article

Passive Harmonic RFID System for Buried Assets Localization

1
Laboratoire de Conception et d’Intégration des Systèmes (LCIS), University Grenoble Alpes, Grenoble INP, 26000 Valence, France
2
Department of Electronics, Electrics and Automatic Control Engineering, Rovira i Virgili University, 43007 Tarragona, Spain
*
Author to whom correspondence should be addressed.
Sensors 2018, 18(11), 3635; https://doi.org/10.3390/s18113635
Received: 21 September 2018 / Revised: 22 October 2018 / Accepted: 24 October 2018 / Published: 26 October 2018
(This article belongs to the Special Issue RFID Sensor Tags: Hardware, Implementation, and Demonstrations)
A passive harmonic tag for buried assets localization is presented for utility localization. The tag design is based on a dual-polarized patch antenna at Ultra High Frequency (UHF) band. One of its feeders is connected to a frequency doubler based on a Schottky diode that generates the second harmonic, which is transmitted using a linear-polarized patch tuned at this frequency. The power received at the other feeder of the dual-polarized antenna is harvested by an RF to DC converter based on a five-stage voltage multiplier whose energy is used to bias a low-power quartz oscillator that modulates the output of the doubler. The different parts of the system are presented, and the theoretical read range is estimated as a function of the soil composition and the water content. A low-cost reader based on a software defined radio is also presented. Finally, experiments with a prototype of the tag are performed for different soil conditions. View Full-Text
Keywords: harmonic radar; RFID; underground communications; passive tag harmonic radar; RFID; underground communications; passive tag
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MDPI and ACS Style

Abdelnour, A.; Lazaro, A.; Villarino, R.; Kaddour, D.; Tedjini, S.; Girbau, D. Passive Harmonic RFID System for Buried Assets Localization. Sensors 2018, 18, 3635. https://doi.org/10.3390/s18113635

AMA Style

Abdelnour A, Lazaro A, Villarino R, Kaddour D, Tedjini S, Girbau D. Passive Harmonic RFID System for Buried Assets Localization. Sensors. 2018; 18(11):3635. https://doi.org/10.3390/s18113635

Chicago/Turabian Style

Abdelnour, Abanob; Lazaro, Antonio; Villarino, Ramón; Kaddour, Darine; Tedjini, Smail; Girbau, David. 2018. "Passive Harmonic RFID System for Buried Assets Localization" Sensors 18, no. 11: 3635. https://doi.org/10.3390/s18113635

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