An Ultra-Miniature Cell-Type Rb Atomic Clock Based on a Novel Waveguide Cavity

We introduce a novel waveguide cavity for ultra-miniature cell-type Rb atomic clock. In the cavity, a coupling ring shaped to be a semi-circle imports an rf signal from electronics, a screw regulator acts as a medium coupler to transmit the microwave signM into the absorption cell, and both the part...

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Published inChinese physics letters Vol. 31; no. 9; pp. 167 - 170
Main Author 白丽娜 曹远洪 刘类骥 杨林 郑兴世 周渭
Format Journal Article
LanguageEnglish
Published 01.09.2014
Subjects
原子钟
子基
时钟
池型
波导腔
电子部件
超微型
铷原子
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Summary:We introduce a novel waveguide cavity for ultra-miniature cell-type Rb atomic clock. In the cavity, a coupling ring shaped to be a semi-circle imports an rf signal from electronics, a screw regulator acts as a medium coupler to transmit the microwave signM into the absorption cell, and both the parts serve as a filter to suppress useless components except 6.8 GHz. Furthermore, the waveguide cavity can be used to design a miniature Rb atomic clock, and spread it to a chip-scale atomic clock. We have completed the design of the smallest cell-type Fib atomic clock in the world based on this waveguide cavity. It has not only a small size but also obviously better key performances than those of other miniature Rb atomic clocks. This ultra-miniature cell-type/75 atomic clock aging is 4 × 10-13/d, which is obviously slower than that of other miniature Rb atomic docks.
Bibliography:BAI Li-Na, CAO Yuan-Hong, LIU Lei-Ji, YANG Lin, ZHENG Xing-Shi, ZHOU Wei（1.Department of Measurement and Instrument, Xidian University, Xi＇an 710071 2. Technologic Center of Atomic Clock, Spaceon Co. Ltd., Chengdu 611731 3.State Key Laboratory of Astronautic Dynamics, Xi＇an 710043）
11-1959/O4
We introduce a novel waveguide cavity for ultra-miniature cell-type Rb atomic clock. In the cavity, a coupling ring shaped to be a semi-circle imports an rf signal from electronics, a screw regulator acts as a medium coupler to transmit the microwave signM into the absorption cell, and both the parts serve as a filter to suppress useless components except 6.8 GHz. Furthermore, the waveguide cavity can be used to design a miniature Rb atomic clock, and spread it to a chip-scale atomic clock. We have completed the design of the smallest cell-type Fib atomic clock in the world based on this waveguide cavity. It has not only a small size but also obviously better key performances than those of other miniature Rb atomic clocks. This ultra-miniature cell-type/75 atomic clock aging is 4 × 10-13/d, which is obviously slower than that of other miniature Rb atomic docks.
ISSN:0256-307X
1741-3540
DOI:10.1088/0256-307X/31/9/098402