Help me to simulate reflectarray antenna element with t-shaped patch in HFSS

hello guys.
i try to simulate reflectarray antenna element with t-shaped patch.i work with hfss and i use master and slave boubdary and floquet port for my periodic conditions.now how can i excite my patch in x or y direction with floquet port? and how can i see co-polarization and cross polarization from hfss for check my polarization?and what is RHCP&LHCP phase shift means? is that the gain phased of RHCP?
please help me