How to plot "input reflection coefficient" in ADS

Hi all,

I am just wondering .... I am trying to simulate a single transistor with two 50-ohm ports connected at the base and collector in ADS.

From theory, if the output is terminated with a 50-ohm load, the input reflection coefficient looking into the base is equal to S11. How ever, if the output is terminated with some impedance other than 50 ohm (Gamma_L is not zero), we need to calculate the input reflection coefficient (Gamma_in) as a function of "Gamma_L"

My question is, how could we plot "Gamma_in" in ADS ? Do we need to edit the equation of Gamma_in by ourselves ? Or, there exists some predefined function ?


Thanks a lot in advance (I will put my schematic soon)

DYL

See http://www.designers-guide.org/Forum...1266403928/1#1

Hi Pancho_Hideboo,

Thanks for feedback, I am reading your reply now.