Platinum/AlN/Sapphire SAW resonator operating in GHz range for high temperature wireless SAW sensor

Autor: Stefan McMurtry, E. Blampain, C. Fu, François Montaigne, S. S. Yang, Omar Elmazria, K. K. Lee, Ouarda Legrani
Rok vydání: 2013
Předmět:
Zdroj: 2013 IEEE International Ultrasonics Symposium (IUS).
DOI: 10.1109/ultsym.2013.0277
Popis: In this work, Pt/AlN/Sapphire SAW resonator operating in 2.45GHz ISM band is studied as a potential sensor for high temperature and high frequency applications. Experimental characterization was realized using a specific station probe between room temperature and 500°C. Results show that electromechanical factor of the structure (K2) increase with temperature, while the quality factor decreases. The variation of frequency with temperature shows a good linearity, which is very useful for temperature sensor applications and the measured TCF of -35 ppm/°C is consisting with modeling predictions.
Databáze: OpenAIRE