High Security Chipless RFID Tags Using Frequency Shift Coding Technique

M. Sumi, A. Pradeep, B. Paul, S. Mridula

High Security Chipless RFID Tags Using Frequency Shift Coding Technique

Číslo: 3/2017
Periodikum: Radioengineering Journal
DOI: 10.13164/re.2017.0765

Klíčová slova: Bistatic measurement, chipless RFID tag, E shaped resonator, frequency shift coding technique, group delay, Bistatické měření, čip bez RFID, rezonátor tvaru E, technika kódování frekvenčního posunu, skupinové zpoždění

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Anotace: A high security chipless RFID tag designed using E shaped resonator is presented in this paper. The tag identity is encoded using Frequency Shift Coding technique. 144 different code words are possible in 2.78 to 3.85 GHz band using two E shaped resonators. The tag identity can be decoded from either amplitude or group delay information. The resonators are designed and fabricated on substrate C-MET LK4.3 of dielectric constant 4.3 and loss tangent 0.0018. Different tag combinations are designed and tested using bistatic measurement setup. Measurement results on realized prototypes are provided to ensure the reliability of the proposed design.