The FE-BIE technique applied to some 2-D problems relevant to electromagnetic compatibility: Optimal choice of mechanisms to take into account periodicity

A study of mechanisms to account for periodicity when modeling two-dimensio nal (2-D) structures with a hybrid finite-element boundary integral equatio n (FE-BIE) method is presented. These techniques are either based on the us e of Green's functions or on the application of the Floquet-Bloch theorem a s a periodic boundary condition, The described formalism can be used to mod el very diverse problem geometries as is demonstrated by means of some typi cal examples. For these configurations, it is shown how an optimal choice c an be made between the mechanisms that impose periodicity.