max gain value and polarization characteristics in hfss

i have some doubts when using hfss

1 for an antenna there should be a max gain value when it operate at a fixed frequeny. So in hfss, how can we get the max gain value in post processing.

2 how to express the polarization characteristics of an antenna in hfss?i mean which reports should be created to observe polarization characteristics .

any help will be appreciated! Best regards!


please help me, thank you in advance!