Large anisotropic inhomogeneous higher order hierarchical generalized hexahedral finite elements for 3-D electromagnetic modeling of scattering and waveguide structures

A higher order large-domain finite element technique for three-dimensional modeling of electromagnetic structures involving general anisotropic inhomogeneous materials is presented.The examples demonstrate efficient and accurate simulations of scattering and waveguide structures using large (a couple of wavelengths across) anisotropic continuously inhomogeneous curved finite elements with p-refined (high-order) field distributions. (C) 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:16441649, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26892