I've been trying to simulate electric field inside a waveguide with
metal rods. But it seems there is less losses than as it should be. I
defined rods as a subdomain with epsilon and sigma but it gives wrong
results, then I tried impedance boundary condition for rods but I
don't know what value to be given the surface electric field, or what
else I can do to observe metallic losses?
I think, I've set a proper value for sigma, I checked transmission results from a paper. Anyway, the problem is to define metallic rods is that enough defining as a subdomain and giving parameters? Or should I take skindepth into account, but how? For this I tried to use boundary condition for rods, but still have the same problem.