I have created a cascade of S-Parameter files using the RF Toolbox. When I use the noiseParameters function for the active elements to calculate the noise figure, I notice that to get a noise figure close to what I have calculated manually, I need to set the impedance to 1 Ohm.
However, I am certain that these S-Parameter files represent 50 Ohm systems. This discrepancy is concerning, and I would appreciate any insights or suggestions on how to resolve this issue.

Thank you!I have created a cascade of S-Parameter files using the RF Toolbox. When I use the noiseParameters function for the active elements to calculate the noise figure, I notice that to get a noise figure close to what I have calculated manually, I need to set the impedance to 1 Ohm.
However, I am certain that these S-Parameter files represent 50 Ohm systems. This discrepancy is concerning, and I would appreciate any insights or suggestions on how to resolve this issue.

Thank you! I have created a cascade of S-Parameter files using the RF Toolbox. When I use the noiseParameters function for the active elements to calculate the noise figure, I notice that to get a noise figure close to what I have calculated manually, I need to set the impedance to 1 Ohm.
However, I am certain that these S-Parameter files represent 50 Ohm systems. This discrepancy is concerning, and I would appreciate any insights or suggestions on how to resolve this issue.

Thank you! cascade, noiseparameters MATLAB Answers — New Questions

​