# [1]杨非,齐宁华,孙忠良.低相噪振荡器的锁频电路模型[J].东南大学学报(自然科学版),2010,40(3):446-448.[doi:10.3969/j.issn.1001-0505.2010.03.002] 　Yang Fei,Qi Ninghua,Sun Zhongliang.Modeling of the frequency-locking circuit in a low phase noise oscillator[J].Journal of Southeast University (Natural Science Edition),2010,40(3):446-448.[doi:10.3969/j.issn.1001-0505.2010.03.002] 点击复制 低相噪振荡器的锁频电路模型() 分享到： var jiathis_config = { data_track_clickback: true };

40

2010年第3期

446-448

2010-05-20

## 文章信息/Info

Title:
Modeling of the frequency-locking circuit in a low phase noise oscillator

Author(s):
State Key Laboratory of Millimeter Waves, Southeast University, Nanjing 210096, China

Keywords:

TN752.5
DOI:
10.3969/j.issn.1001-0505.2010.03.002

Abstract:
The transmission frequency locking circuit is studied here to improve the oscillator phase noise performance. The principle of the transmission frequency locking circuit is presented and the design of the circuit model is accomplished. First, a frequency discriminator circuit’s transmission model is established, and the amplitude-frequency formula is derived, which is called discriminator sensitivity. Pin and β’s influence to the performance of the discriminator sensitivity are both considered. Finally, the oscillator’s phase noise is simulated by using the transmission function H and the discriminator sensitivity S, and the result fits well with the literature. Based on the frequency discriminator circuit’s transmission model, the design criterion of the circuit is derived. When the input power Pinand coupling coefficient β are increased, the discriminator sensitivity can be increased simultaneously; finally, the oscillator’s phase noise performance is improved.

## 参考文献/References:

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[7] 杨非.低相位噪声蓝宝石振荡器研究[D],南京:东南大学信息科学与工程学院,2007.
[8] 杨非,齐宁华,孙忠良.改进的相位噪声公式与低相位噪声振荡器设计[J].东南大学学报:自然科学版,2007,37(5):743-746.
Yang Fei,Qi Ninghua,Sun Zongliang.Modified lees on formula and the low phase noise oscillator design [J].Journal of Southeast University:Natural Science Edition,2007,37(5):743-746.(in Chinese)
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