Patch antenna- Axial Ratio

Hi

Anyone knows how to plot axial ratio vs frequency in ADS Momentum.

From what i know, ADS allows plot of axial ratio vs theta. Does this graph able to show that the patch antenna is circularly polarised?

Since ADS can only plot axial ratio against theta. can i simulate at different frequency to find out the axial ratio at that frequency and plot axial ratio vs frequency gragh?