Multiresonator-Based Printable Chipless RFID for Relative Humidity Sensing†
AbstractWe present a chipless RFID for relative humidity sensing. It consists of three spiral resonators coupled to a 50 Ω microstrip line. One resonator is used for humidity sensing, and the other two are used for encoding ID. The sensing resonator is coated with a humidity sensitive polymer film. As the relative humidity changes the permittivity of the polymer film varies changing the resonant frequency of the sensing resonator. Results show that a dedicated resonator can sense relative humidity over 21–53% range with 2.5 MHz/%RH sensitivity whereas the other two resonators can represent the ID. The sensor does not require any IC and is amenable to low-cost production using printed electronic technology.
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Dominic, D.; Krafft, S.; Safdari, N.; Bhadra, S. Multiresonator-Based Printable Chipless RFID for Relative Humidity Sensing. Proceedings 2017, 1, 367.
Dominic D, Krafft S, Safdari N, Bhadra S. Multiresonator-Based Printable Chipless RFID for Relative Humidity Sensing. Proceedings. 2017; 1(4):367.Chicago/Turabian Style
Dominic, Daniel; Krafft, Simon; Safdari, Naeem; Bhadra, Sharmistha. 2017. "Multiresonator-Based Printable Chipless RFID for Relative Humidity Sensing." Proceedings 1, no. 4: 367.
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