Meta-surface modeling method in FDTD analysis by introducing surface impedance boundary conditions

In recent years, Metamaterials are widely developed. Especially, EBG and AMC are often utilized to antenna engineering. EBG and AMC are called as Meta-surface because these materials are thin structure. In order to design Meta-surface, Numerical analysis method such as an FDTD method is used. However, calculation cost of the FDTD method becomes large due to the complex structure of Meta-surface. In this research, we will indicate an effective modeling method. The method introduces surface impedance condition to model Meta-surface.