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Enhanced RFID tag detection accuracy using distributed antenna arrays
Authors
MJ Crisp
AM Ndifon
RV Penty
IH White
Publication date
1 January 2018
Publisher
12th Annual IEEE International Conference on RFID, RFID 2018
Doi
Cite
Abstract
Β© 2018 IEEE. An Ultra High Frequency (UHF) Radio Frequency Identification (RFID) system using distributed antenna arrays for interrogating RFID tags in a highly multipath environment is demonstrated. The system makes use of phase diversity and beam steering to overcome fading. The tag detection accuracy is compared to a standard fixed antenna system, showing that the presented system is able to deliver more power to the more challenging tags, and therefore is capable of a higher tag read success rate. It is also shown that, whereas a fixed antenna is capable of scanning a single cell, the ability of a phased array to scan through 360Β° azimuth leads to a reduction in number of antennas required for a multicell system. The experimental results are validated using a 3D field-based propagation model, which enables visualisation of the power distribution in the field of interest, and provides insight into the improved system performance
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info:doi/10.1109%2Frfid.2018.8...
Last time updated on 10/08/2021
Sustaining member
Apollo (Cambridge)
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Last time updated on 03/06/2019