Hi, 
I have designed an antenna and I would like to perform deembedding of waveguide port in order to have reference plane at the input port of the antenna. Unfortunately, when I change the reference plane value in waveguide port definition or while doing the post-processing, the deembedding doesnt work - I always have exactly the same phase value for S11 parameter. Could you tell me with that issue?
Best regards,

Konrad

Edu ​​​​​​​CST Studio ​​​​​​​