Title :
A novel inkjet printed carbon nanotube-based chipless RFID sensor for gas detection
Author :
Vena, Arnaud ; Sydanheimo, Lauri ; Tentzeris, Manos M. ; Ukkonen, Leena
Author_Institution :
Dept. of Electron., Tampere Univ. of Technol., Tampere, Finland
Abstract :
This paper presents a fully inkjet printed wireless chipless sensor for carbon dioxide detection. It is composed of two split ring resonators 90 degrees rotated to each other for a total size of 18×46 mm2. The first resonator is used for gas detection whereas the second provides identification of sensor, and a reference for accurate detection. The conductive part of the sensor is realized with silver ink, and the sensitive part is composed of carbon nanotube-based ink. The detection principle relies on a dual-polarization frequency-stepped continuous wave radar operating in the ISM band from 2.4 GHz to 2.5 GHz. Simulations and measurements both wireless, and with a transmission line, they validate the concept.
Keywords :
CW radar; carbon nanotubes; gas sensors; radiofrequency identification; resonators; carbon dioxide detection; carbon nanotube-based ink; chipless RFID sensor; dual-polarization; frequency 2.4 GHz to 2.5 GHz; frequency-stepped continuous wave radar; gas detection; inkjet printed carbon nanotube; inkjet printed wireless chipless sensor; silver ink; split ring resonator; Ink; Radiofrequency identification; Resonant frequency; Semiconductor device measurement; Strips; Wireless sensor networks;
Conference_Titel :
Microwave Conference (EuMC), 2013 European
Conference_Location :
Nuremberg
