Ultrawideband (UWB) radio frequency identification (RFID) systems for real-time objects identification and localization represent a promising solution for a future generation of RFID, as they can overcome current narrowband technology limitations. As is well known from the literature, it is very challenging to ensure a reliable RFID communication when tags are placed in proximity of metallic reflectors. For this reason, we here investigate the interaction between a UWB RFID tag and a close metallic disturber, assuming semi-passive tags operating in modulated backscattering. The impact of the metallic reflector on the tags backscattering pattern and RFID system coverage is evaluated, showing how tag detection is affected since the energy is mainly concentrated in certain directions.

Interaction of UWB Tag Backscattering With Close Metallic Reflectors

GUIDI, FRANCESCO;
2014

Abstract

Ultrawideband (UWB) radio frequency identification (RFID) systems for real-time objects identification and localization represent a promising solution for a future generation of RFID, as they can overcome current narrowband technology limitations. As is well known from the literature, it is very challenging to ensure a reliable RFID communication when tags are placed in proximity of metallic reflectors. For this reason, we here investigate the interaction between a UWB RFID tag and a close metallic disturber, assuming semi-passive tags operating in modulated backscattering. The impact of the metallic reflector on the tags backscattering pattern and RFID system coverage is evaluated, showing how tag detection is affected since the energy is mainly concentrated in certain directions.
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
Francesco Guidi;Alain Sibille;Christophe Roblin
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11585/241678
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