Title :
Read range and sensitivity study of RFID temperature sensors
Author :
Qiao, Qian ; Yang, Fan ; Elsherbeni, Atef Z.
Author_Institution :
Dept. of Electr. Eng., Univ. of Mississippi, Oxford, MS, USA
Abstract :
Read range and sensitivity are two important factors that determine the performance of a wireless sensor. In this paper, various passive RFID temperature sensor designs that integrate a water pocket into the antenna substrate as a sensing unit are investigated. For different water pockets used in sensor configurations, a common tradeoff between read range and sensitivity is observed. As a compromise, a configuration with approximately 6m read range at 20°C and sensitivity of 4MHz/10°C is successfully designed.
Keywords :
radiofrequency identification; temperature sensors; wireless sensor networks; antenna substrate; frequency 4 MHz; passive RFID temperature sensor designs; read range and sensitivity; sensing unit; sensor configurations; temperature 10 degC; temperature 20 degC; water pocket integration; water pockets; wireless sensor performance; Antennas; Gain; Permittivity; Radiofrequency identification; Sensitivity; Substrates; Temperature sensors;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2012 IEEE
Conference_Location :
Chicago, IL
Print_ISBN :
978-1-4673-0461-0
DOI :
10.1109/APS.2012.6349257
