floquet mode

hi all,many here face problem of changing the oblique angle
so i upload cst example file
i hope help all
enjoy

i have simulate you example
but how to get the reflection phase in z direction when the incident wave deflects from normal direction?

let's open the file
run it
go to frequency simulator , press special icon
u wil see that u ask about

why when i update the mesh, there is a message that say volume meshing failed for subdomain component1:solid 2..
btw, i'm a beginner of cst..
i have to design salisbury screen with fss...

how to see the example