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Biasing a differential RF CMOS LNA

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Puppet1

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differential rf

Does anyone know how to bias a differential CMOS LNA ?

Constant gm bias networks ?

thanks
 

biasing lna

It seems that both current mirror and voltage reference are needed.
Once I'm told that the current mirror is the most important part.
 

Surely constant-gm is appropriate for differential_LNA biasing.In fact, gm
is a key parameter in LNA design.
 

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