DocumentCode :
1039715
Title :
Cryogenic sapphire microwave resonator-oscillator with exceptional stability
Author :
Luiten, A.N. ; Mann, A.G. ; Blair, D.G.
Author_Institution :
Dept. of Phys., Western Australia Univ., Nedlands, WA
Volume :
30
Issue :
5
fYear :
1994
fDate :
3/3/1994 12:00:00 AM
Firstpage :
417
Lastpage :
419
Abstract :
Microwave oscillators of exceptional short term stability have been realised from cryogenic sapphire resonators with loaded Q-factors of 109 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 3-4×10-15 for integration times from 0.3 to 100 degrading to 10-14 at 1000 s, and long term drifts of a few parts in 1013 per day
Keywords :
Q-factor; cryogenics; dielectric resonators; frequency stability; microwave oscillators; sapphire; solid-state microwave circuits; 6 K; Al2O3; X-band; active Pound frequency stabilisation; cryogenic sapphire resonators; loaded Q-factors; loop oscillator operation; microwave resonator-oscillator; short term stability;
fLanguage :
English
Journal_Title :
Electronics Letters
Publisher :
iet
ISSN :
0013-5194
Type :
jour
DOI :
10.1049/el:19940271
Filename :
273259
Link To Document :
https://search.ricest.ac.ir/dl/search/defaultta.aspx?DTC=49&DC=1039715
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