Hello,
I am trying to find out the impedance matrix of a 2-Port-RF Device through a numerical simulation in Comsol. For this I had defined a 50 Ohm Port on each side.
Since the simulation did not match the measuerements (wrong Z, wrong resonance f, wrong Q), I tried a simmulation with one port generating the signal, and a PEC (Short) insteda of a second port. This way, the results matched the measurement quite well.
My question would be: when you calculate the impedance of the device using emw2.Zport_1, what is the configuration of the oposite port? Does it keep the 50 ohm set to the other port? Or is the impedance calculated indirectly using the S parameters?
Best regards and thank you in advance, Daniel