Which Impedance Method is Correct for Two-Port Networks?

[Razvan]

Homework Statement

If we have a two-port network, a source with impedance Zs and a load with impedance Zl, I think that the conjugate of Zg and Zl (normal, not conjugated) should be equal to the image impedances of the network.

The problem is that I was told that instead of the conjugate of Zg the normal complex number Zg should be used.

Which is the correct method?

Homework Equations

The Attempt at a Solution

 

[member 553083]

I think that the conjugate of Zg should be used since the image impedances are also conjugates of the source and load impedances.