Help in designing Patch antenna over EBG by using IE3D

hai, i new guy here, currently i doing thesis in design patch antenna over EBG (electromagnetic band gap) by using IE3D. I had found some problem in designing EBG antenna, because the bandwidth dint increase. Do ur guys have example .geo file in IE3d in design the EBG antenna?
Thanks a lot!!!

Hi, lohwenkit:

I believed you have sent me an e-mail on modeling EBG structure. I have replied to you and given you the suggestions on getting wide band EGB structures. Regards.

Hi jian,

can you post or send me an email about wide abdn EBG structures. I would like to know if I know them.

Thanks

regards

piboo