波谱学杂志2017，Vol.34Issue(4)：474-480,7.DOI:10.11938/cjmr20172570
一种小型铷原子频标功率稳幅电路
A Circuit to Improve Power Amplitude Stability in Miniature Rubidium Atomic Frequency Standard
摘要
Abstract
The radiofrequency circuit of traditional miniature rubidium atomic frequency standard (RAFS) uses saturated output, which can stabilize the amplitude, but not the waveform, of the radiofrequency signal. This would lead to insufficient microwave power stability. In this study, an improved circuit for stabilizing power amplitude in miniature rubidium atomic frequency standard was described. The circuit took the bias voltage of step recovery diode (SRD) as a reference to achieve automatic gain control (AGC) through controlling the gain of the variable gain amplifier (VGA). This scheme controlled both the amplitude and the waveform of the radiofrequency signal. The results showed that this scheme can effectively improve power stability of the microwave signal in miniature rubidium atomic frequency standard.关键词
铷原子频标(RAFS)/微波功率稳幅/可变增益放大器(VGA)/阶跃恢复二极管(SRD)/自动增益控制(AGC)Key words
rubidium atomic frequency standard (RAFS)/power amplitude stability/variable gain amplifier (VGA)/step recovery diode (SRD)/automatic gain control (AGC)分类
数理科学引用本文复制引用
罗奇,包婉静,秦蕾,高伟,余钫..一种小型铷原子频标功率稳幅电路[J].波谱学杂志,2017,34(4):474-480,7.基金项目
国家自然科学基金资助项目(11304361). （11304361）
