کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1759296 | 1019273 | 2011 | 8 صفحه PDF | دانلود رایگان |
Excepted for the very short terms the frequency stability of ultra-stable oscillators is mainly limited by the resonator noise. In this work we proposed a parametric model of the bulk acoustic wave (BAW) resonator phase noise based on an equivalent circuit. This model explains phase noise generated by a BAW crystal from a point of view of parametric fluctuations and proves the f−1 dependences of the crystal noise. The model performance is verified with simulation. Simulation results are compared to experimental data and discussed. Comparison of three existing models is made.
► We propose a parametric model of the phase noise of the BAW devices on the idea that resonator parameters are noise sources.
► An equivalent resonator model with fluctuating parameters is solved with the averaging method.
► The result is the nonlinear system with fluctuating coefficients for amplitude and phase of the output signal.
► The numerical simulations correspond to all recent measurements of the quartz resonator phase noise.
► The proposed model is compared with the simplified phase-space approach and noise conversion method.
Journal: Ultrasonics - Volume 51, Issue 8, December 2011, Pages 966–973