help simulat EBG structure using CST

i am interested in finding the reflection phase of ebg using CST.

Hey ,
Did you already try to simulate your design?

i'm already start to simulate my design but there are more methods
-Microstrip transmission line
- cell with boundary condition (xmin , xmax Et=0), (ymin, ymax Ht=0), (Zmin,Zmax open add space)
- cell with boundary condition (Xmin, Xmax periodic), (Ymin, Ymax periodic) (Zmin,Zmax open add space)

Kamel basha :)
Did you find any helpful materials for EBG designs in CST? I'm still searching!?