how I can check if floquet ports are well oriented in the same direction CST

Hello everybody ;
I wish to have help please; analyzing the phase of the output S21 of my structure floquet ports under CST I obtained an opposite phase to that I obtained by modeling; the same phase, but reversed (multiplied * (- 1)); I think the error is in the direction of polarization of the ports but I do not know how to access their configurations under CST knowing that in HFSS we hand to do
thank you!

Hello sztr,
Within Modify Waveguide Port (just double click the port1 at Ports/Navigation Tree), you can check the box Polarization angle at bottom right and set the desired polarization.
Regards.

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