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UWB ranging in passive UHF RFID: proof of concept

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3 Author(s)
Arnitz, D. ; Signal Process. & Speech Commun. Lab., Graz Univ. of Technol., Graz, Austria ; Muehlmann, U. ; Witrisal, K.

A proof of concept for ultra-wideband (UWB)-based ranging in passive UHF RF identification (RFID) is presented. The proposed method uses the tag's backscatter modulation and thus does not require processing of the UWB signal by the tag. It is evaluated using measurements in an indoor environment similar to a warehouse portal in terms of channel impulse responses. The ranging accuracy is comparable to classical UWB ranging and thus inherently robust to multipath propagation.

Published in:

Electronics Letters  (Volume:46 ,  Issue: 20 )