HFSS resonant freqency adjusment

Hi all,
I designed a patch antenna with probe feeding. I chose a resonant frequency at 2.25 GHZ but end of the simulation I got the maximum return loss at 2.3625 GHZ. Number of pass:20, Delta S:0.02. What parameters that i should change to get maximum return loss at 2.25 Ghz ? Any idea ?

Patch size. Linear increase by factor 2.36/2.25 as a first guess.

Thanks a lot. It worked :)