A Slotted-Tube Microwave Cavity for High Performance Miniaturized Rubidium Frequency Standards

doi:10.11938/cjmr20160310

Chinese Journal of Magnetic Resonance ›› 2016, Vol. 33 ›› Issue (3): 452-457.doi: 10.11938/cjmr20160310

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A Slotted-Tube Microwave Cavity for High Performance Miniaturized Rubidium Frequency Standards

WANG Peng-fei^1,2,3, WANG Chen^1,2,3, HE Sheng-guo^1,2, MEI Gang-hua^1,2

1. Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, China;
2. Key Laboratory of Atomic Frequency Standards, Chinese Academy of Sciences, Wuhan 430071, China;
3. University of Chinese Academy of Sciences, Beijing 100049, China

Received:2015-11-11 Revised:2016-07-15 Online:2016-09-05 Published:2016-09-05

Abstract

Abstract:

A slotted-tube microwave cavity with a volume of 11 mL was designed for miniaturized high-performance rubidium atomic frequency standards (RAFS). The magnetic field orientation factor of the cavity was measured to be 0.83. A miniaturized physics package for RAFS was designed based on the dimensions of the cavity, and a desk prototype of RAFS was built. Short-term frequency stability of the miniaturized RAFS built was measured to be better than 2×10¹²/√τ, suggesting that the microwave cavity can be utilized for construction of RAFS with small size and high performance.

Key words: rubidium atomic frequency standards (RAFS), slotted-tube microwave cavity, miniature, high performance

CLC Number:

O482.53

WANG Peng-fei, WANG Chen, HE Sheng-guo, MEI Gang-hua. A Slotted-Tube Microwave Cavity for High Performance Miniaturized Rubidium Frequency Standards[J]. Chinese Journal of Magnetic Resonance, 2016, 33(3): 452-457.

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A Slotted-Tube Microwave Cavity for High Performance Miniaturized Rubidium Frequency Standards

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