Yuting Zhao, S. Genovesi, Guliano Manara, F. Costa
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Frequency-Coded mm-Wave RFID Tags Using Cross Polarization
A frequency selective surface (FSS) based chipless RFID tag is designed at mm-Wave range. It is shown that the proposed design methodology can provide a multiresonant cross polar spectral signature while exhibiting a significant Radar Cross Section(RCS). Encoding in the cross-polar component of the RCS allows reader to detect the signal from surrounding scatters more easily when presence of metallic objects occurs. The unit cell of employed tag consists of five dipole resonators printed on a grounded dielectric slab, which realized a frequency position coding of 5-bit from 60 GHz to 90 GHz.
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