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ADS Help - Equivalent Impedance of S-parameters

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geelani

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Hi All,

I need some help regarding ADS simulation, i am a beginner, I have S-parameters of Transmission lines and LNA, i want to make an equivalent impedance of both Tlines+LNA s-parameters which is shown in the picture, please help me how to make this equivalent Impedance.
 

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  • LNA+Tline.jpg
    LNA+Tline.jpg
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In a separate schematic window, import S parameters of both Tline and LNA to s2p data items, connect ports to them and measure Zin.
Then you will have your Zin and can use it in your current schematic
 
Thanks a lot for your help. I opened new schematic and i have one S4P and another S2P (i have made connections), do i need two input ports and how can i measure Zin, can you please help me.
 

I believe that in ADS there is a component which measures Zin.
Or you can write an expression for it which is: z = zin(Sii, Z)
(Given a reflection coefficient and the reference impedance, this measurement returns the input impedance looking into the measurement ports)
 
Thanks a lot, i have found it and it works well.
 

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