Title :
A single-antenna wireless passive temperature sensing mechanism using a dielectrically-loaded resonator
Author :
Ren, Xinhua ; Ebadi, Siamak ; Gong, Xun
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Univ. of Central Florida, Orlando, FL, USA
Abstract :
A novel wireless temperature sensing mechanism is proposed using a cylindrical cavity resonator loaded with temperature dependent dielectric material. The dielectric constant of the high temperature ceramics increases monotonically with temperature. Therefore, the temperature can be extracted by measuring the change in resonant frequency of the resonator. In order to receive and send signals wirelessly, a patch antenna is connected to the cavity resonator. The resonant frequency of the sensor changes from 11.35 to 11.02 GHz as the dielectric constant of the ceramic material is increased from 4.8 to 5.1. This design benefits from its compact size and has wide advantages in turbine applications.
Keywords :
cavity resonators; ceramics; dielectric materials; dielectric resonator antennas; microstrip antennas; microwave antennas; microwave detectors; microwave resonators; temperature sensors; wireless sensor networks; cylindrical cavity resonator; dielectric constant; frequency 11.02 GHz; frequency 11.35 GHz; high temperature ceramic material; patch antenna; resonant frequency measurement extraction; single-antenna wireless passive temperature sensing mechanism; temperature dependent dielectric material; turbine application; Dielectric constant; Resonant frequency; Temperature measurement; Temperature sensors; Wireless communication; Wireless sensor networks; High-temperature techniques; microwave resonator; 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.2012.6349062
