DocumentCode
1247994
Title
A low noise and ultra-narrow bandwidth frequency-locked loop based on the beat method
Author
Gao, Wei ; Sui, Jianping ; Chen, Zhiyong ; Yu, Fang ; Sheng, Rongwu
Author_Institution
Wuhan Inst. of Phys. & Math., Chinese Acad. of Sci., Wuhan, China
Volume
58
Issue
6
fYear
2011
fDate
6/1/2011 12:00:00 AM
Firstpage
1155
Lastpage
1158
Abstract
A novel frequency-locked loop (FLL) based on the beat method is proposed in this paper. Compared with other frequency feedback loops, this FLL is a digital loop with simple structure and very low noise. As shown in the experimental results, this FLL can be used to reduce close-in phase noise on atomic frequency standards, through which a composite frequency standard with ultra-low phase noise and low cost can be easily realized.
Keywords
frequency locked loops; FLL; atomic frequency standards; beat method; composite frequency standard; digital loop; frequency feedback loops; ultra-low phase noise; ultra-narrow bandwidth frequency-locked loop; Atomic clocks; Bandwidth; Frequency locked loops; Frequency measurement; Phase noise; Physics;
fLanguage
English
Journal_Title
Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on
Publisher
ieee
ISSN
0885-3010
Type
jour
DOI
10.1109/TUFFC.2011.1925
Filename
5895029
Link To Document