Design and measurement results of an UHF RFID localization system

Authors:
Salah Azzouzi;Uwe Dettmar;Rainer Kronberger;Marcus Cremer;Thomas Knie
Affiliations:
Cologne University of Applied Sciences, Koeln, Germany;Cologne University of Applied Sciences, Koeln, Germany;Cologne University of Applied Sciences, Koeln, Germany;Cologne University of Applied Sciences, Koeln, Germany;Cologne University of Applied Sciences, Koeln, Germany
Venue:
Proceedings of the 4th International Symposium on Applied Sciences in Biomedical and Communication Technologies
Year:
2011

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Abstract

In this paper, a new RFID localization system with passive UHF RFID-tags is presented. It is based on angle of arrival (AoA) measurements by means of a phased array antenna with electronic beam steering mechanism. This approach has been successfully applied within a UHF RFID system and it allows the precise determination of the angle and the position of small passive RFID tags. The paper explains the basic principle, the experimental setup with the phased array and shows results of angle measurements and position measurements.