Improving the Sensitivity of Chipless RFID Sensors: The Case of a Low-Humidity Sensor

Electronics

Leandro Lorenzelli¹  Giada Marchi¹  Omar Hammad Ali¹  Viviana Mulloni¹  Massimo Donelli² 

[1] Centre for Sensors and Devices, Fondazione Bruno Kessler, 38123 Trento, Italy;Department of Civil Environmental and Mechanical Engineering, University of Trento, 38123 Trento, Italy;

关键词: chipless RFID sensors;    microwave systems;    humidity sensor;    sensing materials;    Nafion 117;    sensor sensitivity;   

DOI  :  10.3390/electronics10222861

来源: DOAJ

【 摘 要 】

This study is supposed to introduce a valid strategy for increasing the sensitivity of chipless radio frequency identification (RFID) encoders. The idea is to properly select the dielectric substrate in order to enhance the contribution of the sensitive layer and to maximize the frequency shift of the resonance peak. The specific case of a chipless sensor suitable for the detection of humidity in low-humidity regimes will be investigated both with numerical and experimental tests.

【 授权许可】

Unknown