Hello
I am student on electronic and I am trying to simulate with comsol 4.1 on rf module , :

Parameter

k0:
k1x
k1y
Port 1
In the front of the layer
Put the wave excitation in this port (on)
Pin=1
Téta(in) = 0
E0= Ez1
Beta =k1y
Port 2
Put the wave excitation in this port (off)
E0= Ez1
Beta =k1y

wave propagate with difficulty and when i increase the thickness the wave propagate easily i don't know if my simulation is true.

Thank you for your help