Compact Encoding in Chipless RFID via RCS and Polarization Diversity
Baghel, A.
;
Oliveira, V.
;
Carvalho, N.B.C.
;
Pinho, P.
Compact Encoding in Chipless RFID via RCS and Polarization Diversity, Proc IEEE Microwaves, Antennas and Propagation Conference MAPCON, KOCHI, India, Vol. NA, pp. 1 - 4, December, 2025.
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Abstract
In this paper, a tag coding technique is presented based on polarization diversity and the magnitude variation of the radar cross section (RCS) of a single resonator/dipole operating at 5.8 GHz. Two parameters are controlled: the gap (g) between the two parallel legs of the dipole and the polarization relative to the incident field. A total of four distinct states can be achieved using a single resonator. The tags were fabricated and experimentally measured at 5.8 GHz. A spatial density of 1.412 bits/cm2 was achieved with this coding approach, which is quite promising.
