Figure 5
From: Generation of E-band metasurface-based vortex beam with reduced divergence angle

Simulated (black) and measured (red) 2D scattering patterns of the vortex beams at 83 GHz generated by metasurfaces (a) M1, (b) M2, (c) M3, and (d) M4.
From: Generation of E-band metasurface-based vortex beam with reduced divergence angle

Simulated (black) and measured (red) 2D scattering patterns of the vortex beams at 83 GHz generated by metasurfaces (a) M1, (b) M2, (c) M3, and (d) M4.