Low noise and high gain of the RF amplifier are interactional parameters.This paper designs a novel RF amplifier for miniature rubidium frequency standard（MRFS）.By improving traditional circuit and using ADS software,the design overcomes the contradiction of low noise and high gain,has a good reference value for MRFS.%射频放大器的低噪声和高增益是两个相互影响的指标.针对小型化铷原子频标的特殊要求,对传统电路进行改进并通过应用ADS软件对电路进行了优化设计,使设计具有低噪声、高增益和小体积的特点,满足了小型化铷原子频标的要求.
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