Title :
A Novel Conformal RFID-Enabled Module Utilizing Inkjet-Printed Antennas and Carbon Nanotubes for Gas-Detection Applications
Author :
Yang, Li ; Zhang, Rongwei ; Staiculescu, Daniela ; Wong, C.P. ; Tentzeris, Manos M.
Author_Institution :
Georgia Inst. of Technol., Atlanta, GA, USA
fDate :
7/1/1905 12:00:00 AM
Abstract :
This letter introduces for the first time the integration of a conformal radio frequency identification (RFID) antenna with a single-walled carbon nanotube (SWCNT) composite in a chipless RFID node for toxic gas detection. The electrical performance characterization of the inkjet-printed SWCNT film is also reported for the first time up to 1 GHz. The whole module is realized by inkjet printing on a low-cost paper-based substrate, and the RFID tag is designed for the European UHF RFID band. The electrical conductivity of the SWCNT film changes in the presence of very small quantities of toxic gases like ammonia and nitrogen oxide, resulting in the variation of the backscattered power level, which can be easily detected by the RFID reader to realize reliable wireless toxic gas sensing.
Keywords :
UHF antennas; carbon nanotubes; conformal antennas; gas sensors; ink jet printing; radiofrequency identification; wireless sensor networks; European UHF RFID band; RFID reader; RFID tag; conformal RFID antenna; electrical conductivity; electrical performance characterization; inkjet-printed SWCNT film; inkjet-printed antennas; low-cost paper-based substrate; radio frequency identification; single-walled carbon nanotube composite; toxic gas detection; wireless toxic gas sensing; Carbon nanotube (CNT) composites; conformal antennas; gas sensing; inkjet printing; radio frequency identification (RFID); wireless sensor;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2009.2024104
