On 6/26/23 2:22 AM, Fran?ois wrote:
Hello
In the attached formula (ROS.png), as long as Zo is real, even if Zl is complex, everything is fine and S11 remains in a circle of radius 1. and the ROS is between 1 and infinity.
If Zo is complex, this is no longer the case.
While writing C# code looking for a (complex) adaptation by dichotomy, I was looking for a ROS of 1. It doesn't work. I had to use the modulus of the difference between my target and the current value.
double optimiseur = Complex.Subtract(Zouth_, Application.Zcibleh).Magnitude;
Is it legitimate to talk about S11 when Zo is complex?
73
Sure it is: S11 is just a representation of the reflection coefficient on port 1 of the UUT. Generally people use just the log magnitude in dB, but it has a phase, too.
Nothing prevents the Z0 being complex.
