tem metamaterial feko waveguide
A structure with NO ports is meant to be used WITHOUT a direct excitation connection. For example, in contrary to a horn antenna which is usually excited through a wire feed [direct connection], any dielectric plate material [not necessarily a metamaterial] to be simulated have NO ports since it is simply a dielectric sheet without any connection. Hence, in order to obtain the S matrix [S-parameters] of such a structure, it is necessary to embedd ports in the simulation. Wire ports are not convenient since the results will depend on the location of the placed ports and thus this is a false procedure. One way could be the use of a "waveguide port"?! How this could be done in FEKO?
However a problem remains: a plane wave is the one of concern, but a rectangular waveguide port just supports TE or TM and NOT TEM. Maybe this could be solved by placing simultaneously two waveguide ports one being restricted to TE and the other to TM waves.
Any experience in the field?