Please use this identifier to cite or link to this item: http://hdl.handle.net/1822/73350

TitleFrequency-spectra-based high coding capacity chipless RFID using an UWB-IR approach
Author(s)Mekki, Kawther
Necibi, Omrane
Dinis, Hugo Daniel Costa
Mendes, P. M.
Gharsallah, Ali
KeywordsRFID
Antenna
Chipless tag
Reader
UWB-IR
Backscatter
Amplitude
Issue date4-Apr-2021
PublisherMultidisciplinary Digital Publishing Institute (MDPI)
JournalSensors
CitationMekki, K.; Necibi, O.; Dinis, H.; Mendes, P.; Gharsallah, A. Frequency-Spectra-Based High Coding Capacity Chipless RFID Using an UWB-IR Approach. Sensors 2021, 21, 2525. https://doi.org/10.3390/s21072525
Abstract(s)A novel methodology is proposed to reliably predict the resonant characteristics of a multipatch backscatter-based radio frequency identification (RFID) chipless tag. An ultra-wideband impulsion radio (UWB-IR)-based reader interrogates the chipless tag with a UWB pulse, and analyzes the obtained backscatter in the time domain. The RFID system consists of a radar cross-section (RCS)-based chipless tag containing a square microstrip patch antenna array in which the chipless tag is interrogated with a UWB pulse by an UWB-IR-based reader. The main components of the backscattered signal, the structural mode, and the antenna mode were identified and their spectral quality was evaluated. The study revealed that the antenna-mode backscatter includes signal carrying information, while the structural mode backscatter does not include any tag information. The simulation findings were confirmed by experimental measurements obtained in an anechoic chamber environment using a 6-bit multipatch chipless RFID tag. Finally, the novel technique does not use calibration tags and can freely orient tags with respect to the reader.
TypeArticle
URIhttp://hdl.handle.net/1822/73350
DOI10.3390/s21072525
e-ISSN1424-8220
Publisher versionhttps://www.mdpi.com/1424-8220/21/7/2525
Peer-Reviewedyes
AccessOpen access
Appears in Collections:BUM - MDPI

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