Title :
An analysis of the influence of design parameters on the resonant frequency and Q-factor of surface transverse wave (STW) resonators
Author :
Bigler, E. ; Auld, B.A. ; Ritz, E. ; Sang, E.
Author_Institution :
Lab. de Phys. et Metrol. des Oscillateurs, Univ. de Franche-Comte-Besancon, France
Abstract :
The authors present a model predicting the influence of various design parameters (geometrical dimensions, metal thickness, or groove depth) on the resonant frequency of surface transverse wave (STW) resonators. The model is based on the near-stopband approximation and the formalism of cascaded transfer matrices. Results are obtained in the case of a three-grating configuration (mirror-cavity-mirror) for both grooved and metal strip gratings. Based on simple analytical expressions, a design procedure is used, and the influence of various parameters is demonstrated and compared to already published experimental data. Experimental results obtained on metal strip quartz STW resonators are presented and discussed
Keywords :
Q-factor; crystal resonators; modelling; surface acoustic wave devices; Q-factor; cascaded transfer matrices; design parameters; design procedure; geometrical dimensions; groove depth; grooved gratings; metal strip gratings; metal thickness; model; near-stopband approximation; quartz STW resonators; resonant frequency; resonators; surface transverse wave; three-grating configuration; Gratings; Laboratories; Predictive models; Q factor; Resonant frequency; Stability; Strips; Surface acoustic waves; Surface waves; Testing;
Conference_Titel :
Frequency Control, 1991., Proceedings of the 45th Annual Symposium on
Conference_Location :
Los Angeles, CA
Print_ISBN :
0-87942-658-6
DOI :
10.1109/FREQ.1991.145906
