Figure 2
The near-fields of the negative reflection properties from the meta-mirrors. The demonstrations are based on the real part of the E-fields at 15 GHz, and the gradient phase layer of the meta-mirrors are all assumed to zero thickness using proper boundary conditions. (a) Planar meta-mirror with 10° incidence and −60° reflection. (b) Planar meta-mirror with 60° incidence and −10° reflection. (c) The focusing of rays from the convex meta-mirror when excited by a plane wave. (d) The collimation of rays from the convex meta-mirror when excited by a line source at the focal point.
