Issues getting good results on a CPW simulation

[lefachies]

Hello everyone, I am new to openEMS and FDTD simulations in general. I am trying to simulate a CPW line with little succsess. I was hoping I could get some guidance from the community. I've sliced the simulation in many different ways and made many port configurations. However, I cant get Sparameters that remotely represents a thru line. I am obviously missing something, but I don't know what to try anymore, hence why I am reaching out. I have included the files of my most developed simulation here:
Sim6_openEMS_Help.zip
I also included screen shots of the structure in FreeCAD and the S-Parameter of the thru line measured on a VNA. I was hoping you guys could take a look and give me some suggestions as to why I might be getting crappy results and any suggestions as to what I should try next. Thank you to everyone in advanced.

Below is how it looks.

This is how the port is placed. The excitation direction is in the Y direction.

Real measurements for this component up to 40GHz are below. However, I am only interested in simulating up to 14GHz.

Below is how the simulation results look like