DESIGN AND CHARACTERIZATION OF A BROADBAND FLEXIBLE POLYIMIDE RFID TAG SENSOR FOR NACL AND SUGAR DETECTION | Zendy

Mohammed Ali Ennasar | Zendy; Otman El Mrabet | Zendy; Kanjaa Mohamed | Zendy; Mohamed Essaaidi | Zendy

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DESIGN AND CHARACTERIZATION OF A BROADBAND FLEXIBLE POLYIMIDE RFID TAG SENSOR FOR NACL AND SUGAR DETECTION

Author(s) -

Mohammed Ali Ennasar,

Otman El Mrabet,

Kanjaa Mohamed,

Mohamed Essaaidi

Publication year - 2019

Publication title -

progress in electromagnetics research c

Language(s) - English

Resource type - Journals

ISSN - 1937-8718

DOI - 10.2528/pierc19052402

Subject(s) - polyimide , broadband , sugar , characterization (materials science) , materials science , chemistry , computer science , nanotechnology , telecommunications , food science , layer (electronics)

In this paper, we present a broadband flexible RFID sensor tag antenna to detect the concentration of aqueous solutions. The proposed RFID tag antenna sensor with a T matching network is based on a printed dipole whose arms are loaded with circular disk patches. The structure is printed on a Kapton polyimide flexible substrate. The sensing mechanism of the RFID tag antenna is based on the change of sensitivity of the RFID tag antenna that occurs with the variation of aqueous solution concentration. The proposed sensor is designed using CST Microwave studio, and its various parameters are optimized in order to have a broadband impedance matching that covers the entire RFID band (860– 960 MHz). The experimental setup is small, rapid, contactless, and inexpensive. Results are presented for NaCl and sugar aqueous solutions with concentrations ranging from 0% to 80%.

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