The numerical simulation of metasurface by a HDG-GSTCs method

Abstract

We are concerned with the numerical simulation of metasurfaces modeled by generalized sheet transition conditions (GSTCs). A hybridizable discontinuous Galerkin (HDG) method is pro-posed to treat the field discontinuity on the metasurface. We briefly recall the mathematical expressions of the surface susceptibility tensors and present the formulations of the HDG method. The numerical examples by simulating monoanisotropic metasurface show that the proposed HDG method can easily adapt to the discontinuities caused by GSTCs. Additionally, we present COMSOL simulation results for the same metasurface to further validate the efficacy of the proposed method.