High-Q, Stress-Compensated Crystal Device.
Patent Application, Filed 8 Sep 87,
DEPARTMENT OF THE ARMY WASHINGTON DC
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A doubly rotated, stress and temperature compensated quartz crystal resonator. The crystal cuts are arbitrarily designated the SK1 and SK2 cuts. Lateral field excitation is used to excite only the b-mode of vibration fast quasi-shear and suppress the c mode slow quasi-shear. Exclusive excitation of the b mode produces a resonator with a higher Q and lower phase noise than otherwise achievable. Patent application
- Electrical and Electronic Equipment