Title :
Ceramic and magnetic loop antennas for wireless interrogation of SAW resonators on rotating machinery
Author :
Boccard, J.-M. ; Reindl, L.M.
Author_Institution :
Dept. of Microsyst. Eng., Univ. of Freiburg, Freiburg, Germany
Abstract :
This paper presents a novel antenna combination for wireless physical measurements by using Surface Acoustic Wave (SAW) resonators on rotating machinery. The interrogation system is composed of a transceiver based on the RADAR strategy, connected to a magnetic loop antenna. A temperature SAW sensor working in the Industrial, Scientific and Medical (ISM) band [433.05 MHz - 434.79 MHz] is embedded on a three centimeters diameter steel axis and connected to a ceramic chip antenna allowing the wireless interrogation in this particular environment. Simulation, transmission and dynamic temperature measurement results are presented.
Keywords :
ceramics; loop antennas; radar antennas; surface acoustic wave resonators; RADAR strategy; SAW resonators; antenna combination; ceramic chip antenna; dynamic temperature measurement; frequency 433.05 MHz to 434.79 MHz; interrogation system; magnetic loop antenna; rotating machinery; steel axis; surface acoustic wave resonators; temperature SAW sensor; wireless interrogation; wireless physical measurement; Antenna measurements; Antennas; Resonant frequency; Semiconductor device measurement; Surface acoustic waves; Temperature measurement; Temperature sensors;
Conference_Titel :
Antenna Technology (iWAT), 2012 IEEE International Workshop on
Conference_Location :
Tucson, AZ
Print_ISBN :
978-1-4673-0036-0
DOI :
10.1109/IWAT.2012.6178411
