CRYOGENIC SAPPHIRE MICROWAVE RESONATOR-OSCILLATOR WITH EXCEPTIONAL STABILITY

被引:18
作者
LUITEN, AN
MANN, AG
BLAIR, DG
机构
[1] Department of Physics, University of Western Australia, Nedlands
关键词
DIELECTRIC RESONATORS; MICROWAVE OSCILLATORS;
D O I
10.1049/el:19940271
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Microwave oscillators of exceptional short term stability have been realised from cryogenic sapphire resonators with loaded Q-factors of 10(9) at X-band and 6K by employing a synthesis of loop oscillator operation with active Pound frequency stabilisation. These oscillators have exhibited a fractional frequency stability of 3-4 x 10(-15) for integration times from 0.3 to 100 degrading to 10(-14) at 1000s, and long term drifts of a few parts in 10(13) per day.
引用
收藏
页码:417 / 419
页数:3
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