用于芯片级铯原子钟4.596GHz压控振荡器的设计
详细信息 查看官网全文
- 英文论文题名：Design of a 4.596GHz voltage-controlled oscillatorfor chip scale cesium atomic clocks
- 论文作者：鞠青云 ; 栗新伟 ; 汤亮 ; 乔东海
- 英文论文作者：JU Qing-yun ; LI Xin-wei ; TANG Liang ; QIAO Dong-hai ; School of Electronic and Information Engineering ; Soochow University ; Institute of Acoustics ; Chinese Academy of Sciences
- 年：2016
- 作者机构：苏州大学电子信息学院;中国科学院声学研究所;
- 论文关键词：原子钟 ; 压控振荡器 ; 低相位噪声 ; 虚拟地分析法 ; 同轴谐振器
- 英文论文关键词：atomic clock ; VCO ; low phase noise ; the transmission analysis method with a virtual-ground ; coaxial resonator
- 会议召开时间：2016-08-21
- 会议录名称：2016’中国西部声学学术交流会论文集
- 语种：中文
- 分类号：TN752
- 学会代码：SXJS
- 会议名称：2016’中国西部声学学术交流会
- 会议地点：中国四川成都
- 主办单位：中国声学学会微声学分会、中国声学学会物理声学分会、陕西省声学学会、浙江省声学学会、山东省声学学会、上海市声学学会、黑龙江省声学学会、水声技术重点实验室、重庆市声学学会、西安市声学学会、四川省声学学会
- 学会名称：《声学技术》编辑部
- 页数：4
- 文件大小：595k
- 原文格式：D
- 会议级别：全国
摘要
芯片级铯原子钟可以为许多便携式设备提供高精度和高稳定度的时间或频率基准,根据其工作原理,一个被用作微波信号源的小尺寸、低功耗、低相位噪声的4.596GHz压控振荡器是至关重要的组成部分。其中,低相位噪声的实现是最大的挑战,要求谐振电路具有高品质因数特性。基于此,本文利用具有高品质因数和良好温度稳定性的同轴谐振器,在ADS软件中根据虚拟地分析法完成了该压控振荡器的设计,并对其进行瞬态仿真和谐波平衡仿真,分别对电路输出信号的功率、相位噪声和频率调谐范围等进行验证。结果显示,其输出信号功率为-4.95d Bm,相位噪声为-70.84d Bc/Hz@300Hz和-81.68d Bc/Hz@1k Hz,压控调谐灵敏度约为4.5MHz/V,满足芯片级铯原子钟的应用需求。
Thechip scale cesium atomic clocks can provide many portable devices a time or frequency standard with high precision and high stability. According to the operating principle, a 4.596 GHz voltage-controlled oscillation(VCO) with small size, low power consumption and low phase size, serving as a microwave signal source, is a vital part of the system. Among the above indexes, the low phase noise is the biggest challenge which demands the resonance circuit have a high quality factor. Based on this, this paper designs a VCO with the ADS software, using a coaxial resonator with high quality factor and good temperature stability. The transient simulation and the harmonic balance simulation are both run to observe the output power, phase noise and frequency tuning range of the output signal of the VCO. The simulation results show that the output power is-4.95 d Bm, the phase noises are-70.84 d Bc/Hz@300Hz and-81.68 d Bc/Hz@1KHz and the voltage-controlled tuning sensitivity is about 4.5MHz/V, meeting the application requirements of the chip scale cesium atomic clocks well.
Thechip scale cesium atomic clocks can provide many portable devices a time or frequency standard with high precision and high stability. According to the operating principle, a 4.596 GHz voltage-controlled oscillation(VCO) with small size, low power consumption and low phase size, serving as a microwave signal source, is a vital part of the system. Among the above indexes, the low phase noise is the biggest challenge which demands the resonance circuit have a high quality factor. Based on this, this paper designs a VCO with the ADS software, using a coaxial resonator with high quality factor and good temperature stability. The transient simulation and the harmonic balance simulation are both run to observe the output power, phase noise and frequency tuning range of the output signal of the VCO. The simulation results show that the output power is-4.95 d Bm, the phase noises are-70.84 d Bc/Hz@300Hz and-81.68 d Bc/Hz@1KHz and the voltage-controlled tuning sensitivity is about 4.5MHz/V, meeting the application requirements of the chip scale cesium atomic clocks well.
引文
[1]Brannon A,Breitbarth J,Popovic Z.A low-power,low phase noise local oscillator for chip-scale atomic clocks[C].Microwave Symposium Digest,2005 IEEE MTT-S International.2005.
[2]Alechno S.Analysis method characterizes microwave oscillations,Oscillator Analysis,Part 1.Microwaves&RF.November1997:83-86.
[3]Sauvage G.Phase Noise in Oscillators:A Mathematical Analysis of Leeson's Model[J].IEEE Transactions on Instrumentation&Measurement(S0018-9456),1978,26(4):408-410.
[4]Brannon A,Jankovic M,Breitbarth J,et al.A Local Oscillator for Chip-Scale Atomic Clocks at NIST[C].International Frequency Control Symposium and Exposition.2006:443-447.
[5]Randall M,Hock T.General oscillator characterization using linear open-loop S-parameters[J].Microwave Theory&Techniques IEEE Transactions on(S0018-9480),2001,49(6):1094-1100
[2]Alechno S.Analysis method characterizes microwave oscillations,Oscillator Analysis,Part 1.Microwaves&RF.November1997:83-86.
[3]Sauvage G.Phase Noise in Oscillators:A Mathematical Analysis of Leeson's Model[J].IEEE Transactions on Instrumentation&Measurement(S0018-9456),1978,26(4):408-410.
[4]Brannon A,Jankovic M,Breitbarth J,et al.A Local Oscillator for Chip-Scale Atomic Clocks at NIST[C].International Frequency Control Symposium and Exposition.2006:443-447.
[5]Randall M,Hock T.General oscillator characterization using linear open-loop S-parameters[J].Microwave Theory&Techniques IEEE Transactions on(S0018-9480),2001,49(6):1094-1100