PROJECT TITLE :
RFID-Based Wireless Passive Sensors Utilizing Cork Materials
This paper presents the planning of low-price, conformal UHF antennas and RFID tags on 2 varieties of cork substrates: natural cork and agglomerate cork. Such RFID tags realize an application in wine bottle and barrel identification, and additionally, they're appropriate for numerous antenna-based mostly sensing applications. This paper includes the high-frequency characterization of the chosen cork substrates considering the anisotropic behavior of such materials. In addition, the variation of their permittivity values as a operate of the humidity is additionally verified. As a symptom-of-concept demonstration, three conformal RFID tags have been implemented on cork, and their performance has been evaluated using each a commercial Alien ALR880zero reader and an in-house measurement setup. The reading of all tags has been checked, and a satisfactory performance has been verified, with reading ranges spanning from zero.3 to 6 m. Additionally, this paper discusses how inkjet printing will be applied to cork surfaces, and an RFID tag printed on cork is used as a humidity sensor. Its performance is tested under totally different humidity conditions, and a smart vary in excess of 3 m has been achieved, allied to a sensible sensitivity obtained with a shift of >5 dB in threshold power of the tag for various humid conditions.
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