特征：反向传输电容小，低噪声系数。

Features: Small reverse transfer capacitance, low noise figure.

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特点：共基极输出电容小，低噪声系数。

Features: Small output capacitance, low noise figure.

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接收射频前端的高增益和低噪声系数要求两级低噪放级联使用，通过计算低噪放的噪声估量确定了连接方式。

For the requirement of high gain and low noise figure (NF) of the receiver RF destination, two LNAs most be cascaded, which is determined by each noise calculation of the two different LNAs.

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