| 改善高频宽压控晶振频率温度稳定性方法 |
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| 引用本文： | 韩艳菊,;杨科,;郑鸿耀.改善高频宽压控晶振频率温度稳定性方法[J].宇航计测技术,2014,34(6):45-48. |
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| 作者姓名： | 韩艳菊 ;杨科 ;郑鸿耀 |
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| 作者单位： | 1、北京航空航天大学 电子信息工程学院，北京 100083；
2、北京无线电计量测试研究所，北京 100039 |
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| 摘 要： | 高频宽压控晶体振荡器广泛应用于各种接收机和应答机中，工作温度范围通常为-40℃～+85℃。对于该类晶振，极易出现频率温度稳定性相对于其内部石英谐振器明显恶化的现象。对此，从理论上分析了引起恶化的原因，并提出通过合理控制振荡电路的压控范围和石英谐振器的激励功率，可以改善高频宽压控晶振的温频特性。最后，研制并测试了4只102.3MHz压控晶振，结果优于指标要求，充分验证了方法的有效性。
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| 关 键 词： | 压控晶振 频率-温度稳定性 高频 |
Improved Frequency Temperature Stability Method for High Frequency Wide Voltage Controlled Crystal Oscillator |
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| HAN Yan-ju,YANG Ke,ZHENG Hong-yao.Improved Frequency Temperature Stability Method for High Frequency Wide Voltage Controlled Crystal Oscillator[J].Journal of Astronautic Metrology and Measurement,2014,34(6):45-48. |
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| Authors: | HAN Yan-ju YANG Ke ZHENG Hong-yao |
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| Institution: | 1、School of Electronics and Information Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083;
2、Beijing Institute of Metrology and Measurement, Beijing 100039 |
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| Abstract: | High frequency and wide voltage controlled crystal oscillator(VCXO) is widely used in all kinds of receivers and transponders, and the operating temperature range is usually -40℃～+85℃. The frequency temperature stability of this kind of oscillator is easily worse than that of the inner crystal resonator. So, the reason was analyzed, and the method was provided by reasonably controlling the oscillator circuit voltage controlled range and the resonator drive level to improve the high frequency VCXO frequency temperature characteristics. In the end, four 102.3MHz VCXOs were made and tested. The results were better than the performance demands, and sufficiently proved the method validity. |
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| Keywords: | Voltage controlled crystal oscillator Frequency temperature stability High frequency |
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