Research on frequency-temperature compensated sapphire-SrTiO3 loaded cavity for hydrogen maser

被引：0
|
作者：
Wang Nuanrang~(1
2.Beijing Inst
机构：
来源：
Journal of Systems Engineering and Electronics | 2009年 / 20卷 / 04期
关键词：
atomic hydrogen maser; frequency-temperature compensation; sapphire loaded cavity; temperature coefficient;
D O I：
暂无
中图分类号：
TN918 [通信保密与通信安全];
学科分类号：
0839 ; 1402 ;
摘要：
To obtain frequency-temperature compensation in a sapphire loaded cavity for hydrogen maser,a dielectric named SrTiOis employed whose temperature coefficient of permittivity is opposite to that of sapphire. Based on theoretical analysis and computer simulation,a TEmode of a sapphire loaded cavity associated with two small rings of SrTiOwith different thickness is solved,and the useful parameters that influence the temperature coefficient of cavity are calculated.Finally an experiment is brought forward and its results are very close to the computing results.When the thickness of SiTiOdielectric is 7 mm and the diameter is 17 mm in configuration b, the temperature coefficient of cavity is decreased from -58.8 kHz/K to -8.2 kHz/K and the quality factor is 40248.
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页码：711 / 717
页数：7
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