Investigation on magnetron cavity used in rbidium atomic frequency standards

Abstract

Abstract:

A research was developed on the magnetron cavity used in the rubidium atomic frequency standards, through which the main characteristics of the magnetron cavity were studied, mainly including the resonant frequency, quality factor, Oscillation mode. The results show that the resonant frequency of the magnetron cavity can be attenuated to 6.835GHz, which is the resonant frequency for the rubidium atoms, and Q-factor can be attenuated to 600~1000, the oscillation mode is typical TE011 mode which is needed for the rubidium atomic frequency standard, and the cavity has a lower frequency temperature coefficient（32.5KHz/℃－35.0 KHz/℃）, therefore these derivative magnetron cavities can meet the requirements for rubidium atomic frequency standards well.

Key words: optoelectronics, quantum frequency standard, magnetron cavity, resonant frequency, quality factor

YANG Shiyu, LIANG Yaoting, TU Jianhui, CUI Jingzhong. Investigation on magnetron cavity used in rbidium atomic frequency standards[J]. J4, 2012, 29(4): 400-405.

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