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Input Return Loss Circunference on the Smith Chart - RF Cafe Forums

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Canosa
 Post subject: Input return loss circunference on the smith chart
Posted: Fri Jan 21, 2011 2:35 pm 
 
Lieutenant

Joined: Fri Jan 21, 2011 11:39 am
Posts: 1
Hi!!! =)

Im designing a CMOS low noise amplifier and would like to generate the input return loss circles of the amplifier for different values. For example -10 dB, -15 dB and -20 dB. I know that if the amplifier is going to be matched to S11* at the working frequency teoretically the input return loss would be infinity, and is represented as a point in the smith chart. So what im looking for is a manner to generate the various cicles for finite IRL.

By the way...
Im using ADS to design the amplifier.

Any sugestions.............???

Best Regards Canosa




Posted  11/12/2012

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