DocumentCode :
3104354
Title :
New measurement results for the localization of UHF RFID transponders using an Angle of Arrival (AoA) approach
Author :
Azzouzi, Salah ; Cremer, Markus ; Dettmar, Uwe ; Kronberger, Rainer ; Knie, Thomas
Author_Institution :
Dept. of Telecommun., Cologne Univ. of Appl. Sci., Cologne, Germany
fYear :
2011
fDate :
12-14 April 2011
Firstpage :
91
Lastpage :
97
Abstract :
In this paper we present new measurement results for an Angle of Arrival (AoA) approach to localize RFID tags at 868 MHz. Self-designed three element antenna arrays, off-the-shelf IDS R901G RFID reader ICs, and UPM Raflatec DogBone RFID tags are used to generate and detect ISO 18000-6C compliant signals. The experimental setup comprises three antenna arrays and a test environment of size 3 times 3 square meters with 25 test points. The AoA is estimated using the phase differences in the complex baseband signals of adjacent antenna elements within one array. A mean positioning error of 0.21 m was achieved for the considered test grid.
Keywords :
ISO standards; UHF devices; antenna arrays; direction-of-arrival estimation; radiofrequency identification; transponders; IDS R901G RFID reader integrated circuit; ISO 18000-6C compliant signals; UHF RFID transponders; UPM Raflatec DogBone RFID tags; adjacent antenna elements; angle of arrival approach; complex baseband signals; frequency 868 MHz; three element antenna arrays; Antenna measurements; Array signal processing; Phased arrays; Radiofrequency identification; Receiving antennas; Transponders;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
RFID (RFID), 2011 IEEE International Conference on
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-4244-9607-5
Type :
conf
DOI :
10.1109/RFID.2011.5764607
Filename :
5764607
Link To Document :
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