Full-wave simulation of semi-infinite periodic metamaterials

The full-wave simulation of semi-infinite metamaterials is a key tool to the understanding of surface-bounded wave phenomena. In this paper, we present a method that can be used to model a semi-infinite metamaterial using full-wave simulations based on the Method of Moments. First, the impedance matrices describing one layer of the metamaterial are transformed in order to obtain the response of a semi-infinite metamaterial. Then, the fields within the first layers of the structure are computed recursively. The whole process is numerically stable. Numerical results are provided as an illustration.