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HBAR-Based 3.6GHz Oscillator with Low Power Consumption and Low Phase Noise



Hongyu Yu, Chuang-yuan Lee, Wei Pang, Hao Zhang, Alan Brannon, John E. Kitching, Eun Sok Kim


We have designed and built two oscillators, based on High-overtone Bulk Acoustic Resonators (HBAR) for application in Chip-Scale Atomic Clocks (CSAC). The measured phase noise of the 3.6-GHz oscillator is -67 dBc/Hz at 300 Hz offset and ?102 dBc/Hz at 10 kHz offset. The Allan deviation of the free-running oscillator is 1.5x10-9 at one second integration time and the power consumption is 3.2 mW. The low phase noise allows to the LO to be locked to a CSAC physics package without significantly limiting degradation of the clock performance.
Electron Device Letters


Allan deviation, CSAC, HBAR, oscillator, phase noise


Yu, H. , Lee, C. , Pang, W. , Zhang, H. , Brannon, A. , Kitching, J. and , E. (2009), HBAR-Based 3.6GHz Oscillator with Low Power Consumption and Low Phase Noise, Electron Device Letters, [online], (Accessed June 20, 2024)


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Created February 1, 2009, Updated February 19, 2017