what is the general way to find input impedance of common gate amplifier stage in simulation. I tried to provide input as IAC mag =1 , trying to find the impedance at input node (Vin), trying to make it as(Vin/In) ,its coming as a gaussian distribution with peak of 95 Mega V at 300 Mhz. I m running a system around 500 MHz, I m sure the for common gate amplifier input impedance must be low, but its coming like this. I m not sure whether my method is right or wrong. for low frequency its coming around 350 ohm.how to calculate generally input and output impedance .
Hello Mr. Srini,
Can I please talk to you about the common gate? I am having a few issues with it