RF cmos LNA design

Thread Starter


Joined Aug 11, 2015
I want to design 180nm cmos LNA in AWR. I have an input and output matching network. Noise figure,input and output matching values are normal but I can't get the reasonable result for the gain. The gain is -3dBm. I am so confused.I can't find the problem.Please help me.


Joined Feb 24, 2006
A gain of -3dBm doesn't sound like a gain it sounds like an attenuation, unless the input level is some number of dBm and -3dBm is supposed to be the output level. In order to meet this requirement we need to know what the expected input level is. You neglected to mention a few other critical details, but let's ignore them for the time being.