一种用于铷原子频标的小型化低噪声10 MHz晶体振荡器设计
收稿日期: 2022-01-20
网络出版日期: 2022-03-11
基金资助
国家重大科技工程项目
Design of a Miniaturized Low Noise 10 MHz Crystal Oscillator for Rubidium Atomic Frequency Standard
Received date: 2022-01-20
Online published: 2022-03-11
万文杰 , 邱紫敬 , 祁峰 , 梅刚华 , 钟达 . 一种用于铷原子频标的小型化低噪声10 MHz晶体振荡器设计[J]. 波谱学杂志, 2022 , 39(4) : 467 -475 . DOI: 10.11938/cjmr20222973
A miniaturized low noise quartz crystal oscillator for rubidium atomic frequency standard (RAFS) was designed in this paper, with the oscillation circuit applying Colpitts parallel configuration and SC-cut crystal resonator. The phase noise of quartz crystal oscillator was analyzed based on Leeson model, and the oscillation circuit was simulated by using ADS software, which can provide guidance for oscillator design and debugging. Finally, a low noise crystal oscillator with volume of 22 mm×28.5 mm×13 mm has been completed. Test results show that it reached the phase noise of −102.7 dBc/Hz@1 Hz and −164.2 dBc/Hz@10 kHz, and the short-term stability of 1.73×10−12/s.
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