Scattering of obliquely incident electromagnetic plane waves by composite panels involving periodic arrays of circular fibers

The electromagnetic behavior of a single-layer slab comprising a periodic array of infinite circular cylindrical fibers is considered for a plane wave illumination whose wave vector is orientated obliquely vs. the fibers´ axes. Full-wave field representations in this 2.5-D scattering case from multipole and plane-wave expansions are used for calculating reflection and transmission coefficients of the longitudinal field components by matching the modes at the boundaries. Power reflection and transmission coefficients are obtained from time-averaged Poynting vectors. To model a multi-layered structure made by stacking periodic slabs one over the other is the next extension. Among applications, non-destructive testing of a disorganized structure comes to the fore, as well as the making of frequency and polarization selective devices.