A Slotted Patch Antenna Integrated with Thermal Switch for High-Sensitivity Temperature Monitoring

Author

Zhewei Fu ; Fan Yang

Author_Institution

Electron. Eng. Dept., Tsinghua Univ., Beijing, China

Volume

14

fYear

2015

fDate

2015

Firstpage

998

Lastpage

1001

Abstract

This paper presents a reconfigurable patch antenna controlled by a thermal switch for temperature monitoring. A double-patch antenna is evolved from a simple patch antenna to satisfy the radio frequency identification (RFID) chip matching requirement. A slot and a thermal switch are incorporated into the antenna´s left patch to reconfigure the resonant frequency of the antenna according to the temperature of the surrounding environment. The measured read range of the antenna can reach up to 11 m, and the frequency deviation between switch ON and OFF is 34 MHz. Furthermore, the antenna can also work well on metallic objects.

Keywords

microstrip antennas; radiofrequency identification; slot antennas; temperature measurement; RFID chip matching requirement; double-patch antenna; high-sensitivity temperature monitoring; radiofrequency identification; reconfigurable patch antenna; resonant frequency; slot switch; slotted patch antenna; thermal switch; Antennas; Monitoring; Radiofrequency identification; Resonant frequency; Switches; Temperature measurement; Temperature sensors; Radio frequency identification (RFID) tag; reconfigurable antenna; slotted patch antenna; thermal switch; wireless environment monitoring;

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2015.2389265

Filename

7004013