A Single-Antenna Wireless Passive Temperature Sensing Mechanism Using a Dielectrically-Loaded Resonator

被引：0
|
作者：
Ren, Xinhua [1 ]
Ebadi, Siamak [1 ]
Gong, Xun [1 ]
机构：
[1] Univ Cent Florida, Dept Elect Engn & Comp Sci, Orlando, FL 32816 USA
来源：
2012 IEEE ANTENNAS AND PROPAGATION SOCIETY INTERNATIONAL SYMPOSIUM (APSURSI) | 2012年
关键词：
High-temperature techniques; microwave resonator; temperature sensors;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
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.
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