Title :
Application of synchronous two-port resonators for measurement of SAW parameters in piezoelectric crystals
Author :
Soluch, Waldemar
Author_Institution :
Inst. of Electron Technol., Warsaw, Poland
fDate :
7/1/1998 12:00:00 AM
Abstract :
The synchronous two-port resonator can be used for the determination of SAW parameters, including velocity, electromechanical coupling coefficient, and reflection coefficient of one strip. These parameters can be determined from a comparison between the measured and calculated transfer functions of the resonator. Using this technique, the SAW free surface velocity of the 45/spl deg/XZ-cut of lithium tetraborate (Li/sub 2/B/sub 4/O/sub 7/) crystal was found to be equal to 3436 m/s. The other measured parameters agree well with the values found in the literature.
Keywords :
acoustic wave velocity measurement; lithium compounds; piezoelectric materials; surface acoustic wave resonators; transfer functions; two-port networks; Li/sub 2/B/sub 4/O/sub 7/; SAW parameter measurement; electromechanical coupling coefficient; lithium tetraborate; piezoelectric crystal; reflection coefficient; surface velocity; synchronous two-port resonator; transfer function; Lithium; Reflection; Strips; Surface acoustic waves; Transfer functions;
Journal_Title :
Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on
