Effect of Distance for Chipless RFID Magnitude Coding
Résumé
An implementation of the hybrid frequency-magnitude coding is presented. This technique can be applied to enhance coding capacity of already existing chipless radiofre-quency identification tags without increase of complexity. The dependency of the magnitude from the tag-reader distance is discussed and a compensation technique is proposed. An increase of 2.6 bits per resonator is demonstrated from measures in office environment.
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