offnormal incidense in HFSS

Hi,I am working on infinite microstrip reflect array.my requirement is to extract reflection phase for off-normal plane wave incidense.my problem is I do not know that from solution data how i can extract reflction phase using field calcultor.........i also not know how i use calculator for it...can any body help me........thanks in advancel

Hi umerfarooq313
Did solved the problem.
I can use the calculator but the problem how to adjust the offnormal cutplanes (plane overwhich the scattered fields are recorded).
thanks in advance.