simulation of antenna by ie3d

Hi all

I am trying to simulate a CPW-fed antenna that i found in an IEEE paper but i just can't find the results shown in that paper. I think that i am doing something wrong with the ports, ground or basic parameters.

Can anyone check my .geo file and help me? If yes, please tell me to send my .geo file and the antenna of the IEEE paper that i am trying to simulate.

I hope someone will help me with this because i am stuck!

Thanks

Marios Pantazis