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本文从理论上分析了并联电感和串联电感对ＰＩＮ－ＦＥＴ前瑞的作用，证明谐振电感可以有效地抑制ＦＥＴ热噪声的影响，在１．０～１．５ＧＨｚ频率范围内得到接近由量子散粒噪声决定的极限灵敏度。在实验上制作了ＧＨｚ级高速光接收机前端，并用微波网络分析仪测试了前端的频率响应。测试结果与理论分析基本相符。
This paper analyzes the effect of shunt inductance and series inductance on the PIN-FET front-end in theory, and proves that the resonant inductor can effectively restrain the influence of FET thermal noise. In the frequency range from 1.0 to 1.5GHz, Sensitivity of the noise decision. The GHz-level high-speed optical receiver front-end was experimentally fabricated and the front-end frequency response was tested with a microwave network analyzer. The test results are basically in line with the theoretical analysis.