Figure 1. Geometry of anisotropic element and its reflection properties.

(a) Geometry of anisotropic element. The dimensions of the structure are a = 10 mm, px = 9.5 mm, py = 7.4 mm and h = 3 mm. The reflection phases of x- and y-polarized incident waves can be easily adjusted by changing px and py, respectively. (b) Reflection amplitude versus frequency. (c) Reflection phases for both x- and y-polarizations and their difference.