thank you for your reply, but it could not help me. for my design i have assigned floquet ports and using hfss 16 version. in that i am unable to give oblique angles for TE and TM polarizations.
hi if you assign master-slave boundary. you can analyze your structure in any angel of theta and phi(also normal(if thetha and phi is zero) or oblique) with Use Scan Angles to Calculate Phase Delay in the setting of slave boundary.