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Direction of Arrival (DoA) for 180 degree phase ambiguity RFID UHF Reader: Limits and perspectives

Abstract : Recently, Phase Difference of Arrival (PDoA) has been tremendously used to detect Direction-of-Arrival (DoA) of RFID UHF Tags because of its accuracy and robustness in difference environments. However, most of the methods just use RFID Reader with phase range from 0 degree to 360 degree instead of 0 degree to 180 degree which is the case in most of the Commercial off-the-shelf (COTS) RFID Readers. In this paper, some problems of DoA estimation will be introduced when using RFID Reader with range of 180 degree: first, coupling when placing antennas too close; second, phase ambiguity. Real experiments will also be introduced to prove the results.
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https://hal.archives-ouvertes.fr/hal-01719427
Contributor : Sophie Gaffé-Clément <>
Submitted on : Wednesday, February 28, 2018 - 11:12:06 AM
Last modification on : Tuesday, May 26, 2020 - 6:50:53 PM

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Dien Hoa Truong, Fabien Ferrero, Luc Deneire. Direction of Arrival (DoA) for 180 degree phase ambiguity RFID UHF Reader: Limits and perspectives. 2017 IEEE Conference on Antenna Measurements & Applications (CAMA), Dec 2017, Tsukuba, Japan. pp.320-323, ⟨10.1109/CAMA.2017.8273439⟩. ⟨hal-01719427⟩

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