Cryo-cooled sapphire oscillator for the Cassini Ka-band experiment

被引:10
作者
Dick, GJ
Wang, RT
机构
来源
PROCEEDINGS OF THE 1997 IEEE INTERNATIONAL FREQUENCY CONTROL SYMPOSIUM | 1997年
关键词
D O I
10.1109/FREQ.1997.639224
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
We present design aspects of a cryogenic sapphire oscillator which is being developed for ultra-high short term stability and low phase noise in support of the Cassini Ka-band Radio Science experiment. With cooling provided by a commercial cryocooler instead of liquid helium, this standard is designed to operate continuously for periods of a year or more. Performance targets are a stability of 3x10(-15) (1 second less than or equal to tau less than or equal to 100 seconds) and a phase noise of -73dB/Hz @ 1Hz measured at 34 GHz. Test results are reported for several subsystems; including cryocooler, vibration isolation system, and ruby compensating element.
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页码:1009 / 1014
页数:6
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