@inproceedings{54dbc36e2f5940aa92747a4c488667f2,
title = "Power and Phase Variation of Backscattered RFID Signal with Respect to the Incident Power at the Tag",
abstract = "In this paper, we investigate how the incident power at the tag affects the backscattered signal that reaches the reader. It is shown experimentally and theoretically that the backscattered complex signal, i.e. magnitude and phase, changes significantly with respect to the incident power at the tag's antenna. This effect is neglected in prior art and is due to the change of the input impedance of the tag's front end, due to the presence of non-linear components, like the rectifier's diodes. Measured deviation of 14dBs and phase shift of 100 degrees is reported herein. These variations might lead to large localization errors, depending on the method and the measured quantity, unless the localization algorithm accounts for the expected variability.",
keywords = "Modulation Factor, Passive RFID, Phase, RFID tag, RSSI",
author = "Spyros Megalou and Aggelos Bletsas and Traianos Yioultsis and Dimitriou, \{Antonis G.\}",
note = "Publisher Copyright: {\textcopyright} 2021 IEEE.; 2021 IEEE International Conference on RFID Technology and Applications, RFID-TA 2021 ; Conference date: 06-10-2021 Through 08-10-2021",
year = "2021",
doi = "10.1109/RFID-TA53372.2021.9617367",
language = "English (US)",
series = "2021 IEEE International Conference on RFID Technology and Applications, RFID-TA 2021",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "36--39",
booktitle = "2021 IEEE International Conference on RFID Technology and Applications, RFID-TA 2021",
address = "United States",
}