The MMP applied to the scattering problem of the periodically fluctuated lossy dielectric surface and periodical grating embedded in dielectric layer

The MMP (multiple multipole) applied to the 3-D scattering problem of the 2-D periodic array is introduced. The power reflection and transmission coefficients have been used to characterize an array. As examples, the scattered field from a 2-D periodically fluctuated lossy dielectric surface is shown, and the power reflection coefficient curve of a metal Greek-cross embedded in a dielectric layer is given.<>