The gain vs frequency and normalized E-plane/H-plane pattern in folded patch antenna

hello everyone.. i'm now using hffs v9.1 and stil very new on it.. i have to design folded patch antenna.. Currently i already design a few simple patch antenna and try to get the same result as many paper.. i manage to find the return loss but my question is:

How to find the gain vs frequency (gain at different freq)?
How to find normalized E-plane/H-plane radiation pattern?

I very happy is anyone here want to share about folded patch antenna..

Thankss..