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FDTD Modeling of a Dipole Antenna above Metasurface Using Surface Impedance Boundary Condition

In this paper, a FDTD modeling method for calculating characteristics of an antenna above a metasurface is presented. A surface impedance boundary condition (SIBC) is introduced into the FDTD method to reduce computational time and resources. The validity of the proposed method is numerically confirmed by calculating an input impedance and a radiation pattern of a horizontal dipole antenna located above the metasurface.