Excitation for LPDA (2 booms) using HFSS

Hi,

I'm new to HFSS and I wanted to check if the excitation I used for the LPDA was correct. I have designed a LPDA with 2 booms. I provided a lumped port between the booms (shorter arm side) via a rectangle (check attached image). I have doubts to the correctness of this. It would be great if someone could help me out. The analysis is taking hours even for a single pass, and shows no progress for multiple passes. Also, the radiation pattern is strangely distorted.

Thanks,
Mandar.