Title :
A new model of 1/f noise in BAW quartz resonators
Author :
Walls, F.L. ; Handel, P.H. ; Besson, R. ; Gagnepain, J.J.
Author_Institution :
Nat. Inst. of Stand. & Technol., Boulder, CO, USA
Abstract :
A new model for predicting the 1/f (flicker) frequency noise in quartz resonators as a function of the unloaded resonator quality factor Q and volume under the electrodes for bulk acoustic wave (BAW) resonators is presented. The functional form of this model originates from a quantum 1/f theory for scattering of phonons from the primary oscillator mode. Using this new model, it is possible to match the 1/f frequency noise observed in the best quartz-controlled oscillators and resonators. This model indicates that the amplitude of 1/f frequency noise might be improved by making resonators with smaller electrodes
Keywords :
Q-factor; acoustic resonators; crystal resonators; random noise; 1/f noise; BAW quartz resonators; SiO2; flicker noise; model; primary oscillator mode; quantum 1/f theory; scattering of phonons; unloaded resonator quality factor; 1f noise; Acoustic noise; Acoustic scattering; Acoustic waves; Electrodes; Frequency; Oscillators; Predictive models; Q factor; Quantum mechanics;
Conference_Titel :
Frequency Control Symposium, 1992. 46th., Proceedings of the 1992 IEEE
Conference_Location :
Hershey, PA
Print_ISBN :
0-7803-0476-4
DOI :
10.1109/FREQ.1992.269996
