Stability circles smith chart problem

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yefj

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Hello when i want to match my LNA for Available gain my source stabiliy circle matches partially the available gain circle.
But when i match for power gain ,the my load stability almost completely matches the power gain circle,as shown in circles bellow.
So how should i act in this case so i will have a stable LNA with the gain wanted?
Thanks.



 

Not totally get what you said.

Basically terminating the load with a stable load impedance or terminating the source with a stable source impedance, and then conjugate matching the other port. The amplifier will get a stable work.
 

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