| 摘要: |
| 在分析高稳定晶体振荡器（OCXO）工作原理的基础上，提出了一种改善晶体振荡器相位噪声的方法。通过低噪声主振电路设计、高精度控温电路设计及机电一体化设计等措施，设计研制了一种宇航用小型化超稳定晶体振荡器（USO），尺寸为99mm×88mm×55mm。经测试，产品短期频率稳定度为2.11×10-13/1s、3.28×10-13/10s、8.61×10-13/100s(Allan方差)，相位噪声为-129.4dBc/Hz@1Hz和-147.0dBc/Hz@10Hz。 |
| 关键词: 高稳定晶体振荡器（OCXO） 超稳定晶体振荡器（USO） 短期频率稳定度 相位噪声 |
| DOI： |
|
| 基金项目:2020年国家重点实验室基金（6142411196307） |
|
| Development of Miniaturized Ultra-stable Oscillator for Aerospace Application |
| YANG Lei |
| (China Academy of Space Technology (Xi'an), Xi'an 710000, China) |
| Abstract: |
| Based on the principle of OCXO, a method to reduce the phase noise is proposed. With the low phase noise oscillation circuit design, high precision temperature control circuit design, and mechanical and electrical integration, we develope a miniaturized ultra-stable oscillator (USO) for aerospace application. The size of the USO is 99mm×88mm×55mm. Through tests of the product, the short-term stabilities of the USO have reached 2.11×10-13/1s, 3.28×10-13/10s, and 8.61×10-13/100s, and the phase noise are -129.4dBc/Hz@1Hz and -147.0dBc/Hz@10Hz. |
| Key words: OCXO USO Short-term stability Phase noise |
