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How is the S11 of an amplifier performed in ADS?

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STOIKOV

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in ADS the S11 of an amplifier is performed with or without the VDD of the circuit ?
 

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Re: S11

As far as i know the S11 parameter is determined without any external supply.

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Slayer
 

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S11

S11 will generally be different between power off and power on. If you want S11 when the amplifier is active, then that's how you should simulate it.
 

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Re: S11

Hi,

Some transistor models you choose in ADS already include the set of DC biasing conditions. Hence, the S11 u get from transistor is at the biasing condition.
 

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