Passive Harmonic RFID System for Buried Assets Localization
AbstractA 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
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Abdelnour, A.; Lazaro, A.; Villarino, R.; Kaddour, D.; Tedjini, S.; Girbau, D. Passive Harmonic RFID System for Buried Assets Localization. Sensors 2018, 18, 3635.
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.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.
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