Eigenanalysis of tuneable two-dimensional array of wires or strips embedded in magnetized ferrite

An eigenanalysis of an array of periodically located wires covered with axially magnetized ferrites is presented. The interest in this structure stems from our previous study which revealed that such a wire may support backward surface and possibly backward leaky waves. These possibilities are examined herein by using our two - dimensional curvilinear frequency domain finite difference (FDFD) toward the eigenanalysis of periodic structures. The analysis is focused not only in in-plane wave propagation but also in out of plane wave propagation where the propagation constant along the z axis is different than zero.