Bandpass FSS
Calculate the transmission coefficient of a second order, electrically thin bandpass FSS (frequency selective surface) structure. The structure is modelled with a periodic boundary condition and is excited with an incident plane wave.
- Using the method of moments (MoM) solution with the surface equivalence principle (SEP).
- Using the hybrid finite element method and method of moments (FEM / MoM) solution method.

Figure 1. 3D view view of the second order FSS in CADFEKO.
Compare the transmission coefficient with the reference.1