| 氢频标蓝宝石微波腔金红石温度补偿的仿真设计 |
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| 引用本文： | 王暖让,周铁中,高连山,冯克明.氢频标蓝宝石微波腔金红石温度补偿的仿真设计[J].宇航计测技术,2008,28(3):15-19. |
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| 作者姓名： | 王暖让 周铁中 高连山 冯克明 |
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| 作者单位： | 计量与校准技术国防科技重点实验室,北京,100039;北京无线电计量测试研究所,北京,100039 |
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| 摘 要： | 为了降低氢原子频标蓝宝石微波腔的频率温度系数，提出采用介质温度补偿技术。该技术利用负温度系数晶体——金红石补偿蓝宝石由于温度变化而引起的介电常数的变化，通过理论计算比较了补偿前后各参数的变化，最后通过软件仿真来验证理论计算的正确性，并确定补偿介质的引入不影响咂。模式。当补偿介质环高度为5mm时，微波腔的频率温度系数为-28．99kHz／℃，Q值为41648，与实验结果相近。
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| 关 键 词： | 氢频标 蓝宝石微波腔 温度系数 温度补偿 |
Design and Simulation of a Sapphire-Rutile Temperature-compensated Cavity in Hydrogen Maser |
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| WANG Nuan-rang,ZHOU Tie-zhong,GAO Lian-shan,FENG Ke-ming.Design and Simulation of a Sapphire-Rutile Temperature-compensated Cavity in Hydrogen Maser[J].Journal of Astronautic Metrology and Measurement,2008,28(3):15-19. |
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| Authors: | WANG Nuan-rang ZHOU Tie-zhong GAO Lian-shan FENG Ke-ming |
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| Institution: | WANG Nuan-rang, ZHOU Tie-zhong, GAO Lian-shan, FENG Ke-ming(1. National Key Laboratory of Metrology and Calibration Technology, Beijing 100039) (2. Beijing Institute of Radio Metrology ＆ Measurement, Beijing 100039) |
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| Abstract: | To achieve low temperature coefficient of microwave cavity in Hydrogen frequency stand- ard,dielectric temperature compensated technology is brought forward. In that a dielectric named rutile which exhibits an opposite temperature coefficient of permittivity to sapphire is used to compensate the frequency-temperature dependence of sapphire. All parameters of cavity with rutileare compared with before throu-gh theoretical analysis. Finally the theoretical results are validated by computer simulations and it is certain that the TEo11 mode has not been influenced by rutile. When the height of dielectric ring is 5 mm,the temperature coefficient of cavity frequency is 28.99 kHz/℃ ,and the quality facotor is 41 648. The results are very close to experimental values. |
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| Keywords: | Hydrogen frequency standard Sapphire loaded cavity Temperature coefficientTemperature compensated |
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