problem with results of patch antenass in HFSS 10

First off all, sorry about my bad english

I am a new here on this forum, and have a problem with projects in HFSS v10. I am making a cirkular patch antenass on a pipe, and half sfere ground. this antenass what i am make is making by the real antennas dimensions and averything. Simulation goas whell, but the results are not good, the radioation pattern not looks like the should be.

Please if anybody can help me about that, projects are in attach.

Thanks

Bruno

p.s. the radiation pattern what should be looks like is on attachment too.


cilindar zadnji.rar

kugla zadnja.rar

please somebody help me really need a help

Anybody? please people help me!