Design oscillator with linear small S parameters

[baby_1]

Hello
I have a question about design oscillator with linear small S parameters.If you assume I use a Common emitter configuration and put my resonator at input port (Base/Emitter). After I select a Gama(G) in unstable region in input smith chart plane(for example Gama(G)=A<B (for example A=1)) and I map it into Gama(L) plane it is necessary that Gama(L) should be in unstable output region or only |Gama(L)| should be more than unity?
what is the best design ( |Gama(L)|>1 and be in unstable region or |Gama(L)|>1 and be in stable region )?
Thanks

 

[Illmatic1]

for your helpThe best design would be to choose a gamma(G) in the unstable region of the input smith chart plane, and then map it to a gamma(L) in the unstable region of the output smith chart plane. This ensures that the oscillator is operating in an unstable region and will generate an oscillating signal. A gamma(L) with a magnitude greater than 1 is also necessary, as this indicates that the oscillator is oscillating at the desired frequency.