Taming the Electromagnetic Boundaries via Metasurfaces: From Theory and Fabrication to Functional Devices

Figure 33

Reflection phases for different values of gap width for thickness of (a) = 2 mm and (b) = 6 mm. The other geometrical parameters are chosen as = 4 mm and = 0.2 mm. (c) -component and (d) -component of electric fields for = 2 mm, = 2.8 mm, and = 10 GHz. (e) -component and (f) -component of electric fields for = 6 mm, = 2.8 mm, and = 10 GHz. (g) Schematic of the gradient metasurface. (h) Electric field distribution in the scattering region at normal incidence for 8, 8.5, 9, 9.5, 10, and 10.5 GHz. The dashed black arrows indicate the propagation direction evaluated by . Figures are reproduced from [19].

(a)

(b)

(c)

(d)

(e)

(f)

(g)

(h)