[CST MWS] Radiated field from microstrip on PCB

Hello everyone,
i am trying to simulate in CST the radiated field from a microstrip which is placed on a pcb.

By means of CST PCB Studio tool, I have selected a pcb net associated with a microstrip and exported it to CST MWS.
In CST MWS I have now my microstrip with entire stack-up of pcb substrate.

Here i am stuck. I would like to simulate radiated field from microstrip in order to perform EMC analysis, but I don't know how to place the ports, what type of ports to use and which boundary conditions to apply.

Could you help me?

If your pcb only includes the transmission line, you can you waveguide ports. The appropriate dimensions for the ports can be found in the manual. Subsequently, you choose a far-field monitor, either broadband or for a specific frequency.

Thank you for replay.
How can I place the waveguide port respect with pcb? If my trasmission line is on top of pcb, what is the better place to insert waveguide port?

You choose the front face of the tml cross section. But it is sufficiently explained in the manual, just press "F1".

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