Hello everyone,

I am a beginner and a student working on creating a Vivaldi antenna using CST Studio Suite . I am experiencing difficulties when attempting to extrude a curve. Specifically, the menus are grayed out and the parameter box does not appear when I select the curve.

Here are the steps I followed:
1. Selected the curve.
2. Double-clicked on the curve to turn it red.
3. The extrusion menus are grayed out and the parameters do not display.

I have tried restarting the software and verifying that the curve is correctly defined, but I am still facing the same issue.

I managed to create a face from the curve, but now I am unable to subtract this face from my metal plate.

Could anyone please assist me in resolving this issue? Any help would be greatly appreciated!

Thank you in advance for your assistance.

Best regards,