Suppression of Specular Reflections by Metasurface with Engineered Nonuniform Distribution of Reflection Phase

Figure 5

(a) Photograph of a nonuniform surface sample composed of three-layer stacked-patch elements. Note that the bottom row of elements is buried in foams and can not be seen. (b) Two-dimensional distribution of dimension for patches on the bottom layer (unit: millimeters).

(a)

(b)