Conference Paper

Performance evaluation and optimization of UHF RFID systems

DOI: 10.1109/IMTC.2010.5488024 Conference: Instrumentation and Measurement Technology Conference (I2MTC), 2010 IEEE
Source: IEEE Xplore

ABSTRACT An experimental study of a modern ultra high frequency (UHF) radio frequency identification (RFID) system is here proposed. Some relationships between the electromagnetic field levels received by the deployed devices and the system overall performance are in particular analyzed. The main purpose is to experimentally analyze the behavior and performance of a real world UHF RFID system underlying the importance of preliminary measurements in the setup and optimization of these systems. Practical rules to improve the system reliability are finally deduced. To this aim, a detailed description of tags operation in near and far field regions of the reader is given, along with meaningful results from experiments conducted on purpose. Experiments have been carried out by using an ad-hoc realized testbed, equipped with a real-life UHF RFID system.

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    • "On the contrary, it has been highlight that the presence of metal or water has even much more drawbacks in NF rather than FF UHF tags. (Bertocco et al, 2010) experimentally investigates the relationships between the EM field levels at the tag antenna and the overall performance of a UHF RFID system. The results have underlined the importance of preliminary measurements in the setup of the system, in the evaluation of the maximum distances between tags and reader antenna, and in the estimation of a correction factor to be used in theoretical analyses. "
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