How to observe the phase of electric field on a face in HFSS

Hello, i've met a problem when using hfss.For example, a microstrip bend is simulated using hfss, how can i define the the phase of electric field on the dielectric surface and then show the animated phase change.

One of the HFSS field plot options is to plot vector E on a face and see the animated vector components.

Look it up in on line help.

Thx for your reply, Azulykit!
I know the basic function of drawing the plot such as Vector_ E、Mag_E etc., and my question is how to define the phase of the electric field,then show the animated phase change on a plane. The field calculator may be needed.

JQPROS