Title :
Application of synchronous two port resonators for measurements of SAW parameters in piezoelectric crystals
Author :
Soluch, Waldemar
Author_Institution :
Inst. of Electron. Mater. Technol., Warsaw, Poland
Abstract :
The IDTs of the synchronous two port resonator are integral parts of the short circuited reflectors. Therefore we have only two regions of different SAW velocities: between reflectors and inside them. The transfer function, derived by the scattering matrix method for the nonsynchronous resonator, was adapted to the synchronous one. SAW parameters can be evaluated by comparing the measured and calculated transfer functions of the resonator. Calculations and measurements are presented for the 45°XZ cut of lithium tetraborate (Li2B 4O7) crystal
Keywords :
S-matrix theory; acoustic materials; acoustic wave velocity measurement; lithium compounds; piezoelectric materials; surface acoustic wave resonators; surface acoustic waves; transfer functions; two-port networks; IDT; Li2B4O7; SAW velocity measurement; lithium tetraborate; piezoelectric crystal; scattering matrix; short circuited reflector; synchronous two port resonator; transfer function; Acoustic reflection; Circuits; Crystals; Delay lines; Electrodes; Frequency; Lithium; Materials science and technology; Surface acoustic waves; Transfer functions;
Conference_Titel :
Frequency Control Symposium, 1997., Proceedings of the 1997 IEEE International
Conference_Location :
Orlando, FL
Print_ISBN :
0-7803-3728-X
DOI :
10.1109/FREQ.1997.639197
