Problem with simulating surface currents in CST

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pepillo

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Surface currents in CST

When I try to simulate surface currents in CST it says that "current monitor only considers electric conductivity and will be ignored for dispersive material behaviour". How can I fix this? I am using PEC for the SMA connector and Copper for the microstrip line and ground plane. What's wrong????
 

Surface currents in CST

may be it means that copper is a metal and thus dispersive ?

try to make all the materials PEC and see what will happen.

However, I think the problem is somewhere else. I do not believe that CST Microwave Studio cannot simulate the surface current on the a microstrip antenna feed
 

    pepillo

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