KRAČEK, J., M. ŠVANDA, and K. HOFFMANN. Scalar Method for Reading of Chipless RFID Tags Based on Limited Ground Plane Backed Dipole Resonator Array. IEEE Transactions on Microwave Theory and Techniques. 2019, 67(11), 4547-4558. ISSN 0018-9480. DOI 10.1109/TMTT.2019.2918287.
In this paper, we propose a novel frequency domain reading method for the chipless RFID tags. It is based on a single scalar measurement of transmission coefficient magnitude between two antennas by the presence of a tag. The method enables to reliably read the chipless RFID tags based on a dipole resonator array, which is backed by a limited ground plane, in a real environment outside the anechoic chamber. Moreover, it suits simple, yet not necessarily well impedance matched, reader antennas represented by an open end of the rectangular waveguide. The method was verified experimentally in the frequency band of 7–11 GHz.
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IEEE
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IEEE Transactions on Microwave Theory and Techniques