特点：共基极输出电容小，低噪声系数。

Features: Small output capacitance, low noise figure.

youdao

如果信号源和电路不是用电容耦合而是直接相连，从基极到负电源线就会一个低阻通路，并且这将影响到电路偏置状态。

If the signal source were direct connected instead of capacitor coupled, there would be a low resistance path from the.

youdao

如果信号源和电路不是用电容耦合而是直接相连，从基极到负电源线就会一个低阻通路，并且这将影响到电路偏置状态。

If the signal source were direct connected instead of capacitor coupled, there would be a low resistance path from the.

youdao