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Quadrature mixer NF simulation setting problem! Help!!!

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wccheng

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Dear all,

I have question about the quadrature mixer NF simulation setting. I hope anyone could teach me.
The attached picture is the NF simulation setup for quadrature mixer. In my design, it has two input ports (Port 1 and Port 2) and generate quadrature signal for the mixer input. The mixer output is out_p and out_n. In the NF simulation setup, it requires to give the Output Node and Input Source. In the Output box, I set Positive Output Node = /out_p and Negative Output Node = /out_n. In the Input Source, I set Input Port Source = /PORT1. I suspect this setting is correct or not. How about the effect of Port 2? Or, could you suggest any correct setting for quadrature mixer NF simulation?

Thanks

wccheng
 

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