A New FDTD Scheme Analysis of the Characteristics of the Magnetic-Anisotropic EBG Structure

In this article, the new grid finite-difference time-domain (NG-FDTD) method is applied to calculate the dispersion curves of electromagnetic band-gap structures, and the dispersion characteristics of three magnetic-anisotropic medium EBG structure are obtained using the NG-FDTD method. According to these results, we can conclude that the EBG structure of a magnetic-anisotropic medium, in which the permeability of nondiagonal elements is real, has a much larger band-stop than that of isotropic EBG. Other magnetic-anisotropic EBG structures can also increase the first band-stop.