源端电感负反馈LNA的稳定性问题
时间：10-02
整理：3721RD
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最近在看源端电感负反馈低噪放Cascode CS Stage with Inductive Degeneration，典型结构如下
在拉扎维的射频电子学260页有这么一段话，In modernRF design, on the other hand, the load impedance of the LNA (the input impedance of the
on-chip mixer) is relatively well-controlled, making K a pessimistic measure of stability.
Also, since the LNA output is typically not matched to the input of the mixer, S22 is not a
meaningful quantity in such an environment.
现在都是源端电感负反馈加一个cascode管子，后面如果接passive mixer，怎么评估和仿真电路的稳定性问题・_・?spectre里面的sp仿真是kf和b1f，但是这两个是从s参数推出来的，请大神帮忙解答，谢谢
在拉扎维的射频电子学260页有这么一段话，In modernRF design, on the other hand, the load impedance of the LNA (the input impedance of the
on-chip mixer) is relatively well-controlled, making K a pessimistic measure of stability.
Also, since the LNA output is typically not matched to the input of the mixer, S22 is not a
meaningful quantity in such an environment.
现在都是源端电感负反馈加一个cascode管子，后面如果接passive mixer，怎么评估和仿真电路的稳定性问题・_・?spectre里面的sp仿真是kf和b1f，但是这两个是从s参数推出来的，请大神帮忙解答，谢谢
我看论文，书上都是仿K值的。
我也在看这边书，有问题一起交流啊Q1181077380。