Help me design connector to coaxial cable and measure VSWR in HFSS

I'd like to design connector to coaxial cable and measure VSWR (impedance mismatch) in HFSS. I don't know how to set boundaries and excitations. Can you help me? Please take a look on attachment.

you need to add female connector, and you will get coax from both sides. then assign to each side waveguide port and solve it.

I think you should build 3D model similar to real geometry, and define two wave ports.