lumped port define for cross dipoles

hi.
i am trying to simulate crossed bow tie antenna i got good results for s11 but my radiation pattern is completely distorted can anyone check my model and tell me either i have define port correctly?also radiation pattern depends on which factors?i have attach my file

I check it for you, but no promise to find anything.

hi
it means it is correct?and i should consider these results reliable and having no problem with port?also can you tell me i define resistance and reactance of port 100 ohm and full port impedance 50 ohm is it ok for port?