antenna for 12 ghz

Judging on your spelling error I guess it is for a school project? Please understand that you'll have to design it yourself, but we can always give some help.

ive designed one at 10.5 ghz u have to increase its length and width
if u need it then i can send u

Added after 13 minutes:

check this out
i can also help u by another antenna

@rezz35
can i ask u from which country u belongs to?