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Multiresonator-Based Chipless RFID System for Low-Cost Item Tracking

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4 Author(s)
Preradovic, S. ; Dept. of Electr. & Comput. Syst. Eng., Monash Univ., Clayton, VIC ; Balbin, I. ; Karmakar, N.C. ; Swiegers, G.F.

A fully passive printable chipless RFID system is presented. The chipless tag uses the amplitude and phase of the spectral signature of a multiresonator circuit and provides 1:1 correspondence of data bits. The tag comprises of a microstrip spiral multiresonator and cross-polarized transmitting and receiving microstrip ultra-wideband disc loaded monopole antennas. The reader antenna is a log periodic dipole antenna with average 5.5-dBi gain. Firstly, a 6-bit chipless tag is designed to encode 000000 and 010101 IDs. Finally, a 35-bit chipless tag based on the same principle is presented. The tag has potentials for low-cost item tagging such as banknotes and secured documents.

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Microwave Theory and Techniques, IEEE Transactions on  (Volume:57 ,  Issue: 5 )