A Fully Inkjet-Printed Wireless and Chipless Sensor for CO2 and Temperature Detection

作者：Vena Arnaud^*; Sydanheimo Lauri; Tentzeris Manos M; Ukkonen Leena

来源：IEEE Sensors Journal, 2015, 15(1): 89-99.

DOI：10.1109/JSEN.2014.2336838

• Chipless sensor
• RFID
• gas
• temperature
• inkjet-printing
• carbon nanotubes

A study on a low-cost wireless fully inkjet-printed chipless sensor on a flexible laminate with three different inks is presented. It is based on two split ring resonator 90 degrees oriented between each other to allow for independent responses on two polarizations. A deposit of a polymer/single walled carbon nanotube composite ink is used to allow for the detection of CO2 as well as temperature. In this paper, it is shown that the inkjet printing of a polymer-based coating on top of the sensing/reactive deposit can significantly reduce the sensitivity to CO2, whereas the temperature sensitivity stays at same. Simulations and experimental results verify the repeatability of this topology.

• 出版日期2015-1