High-efficiency wideband flat focusing reflector mediated by metasurfaces

Yu Ji-Bao^a), Ma Hua†^a), Wang Jia-Fu^a), Li Yong-Feng^a), Feng Ming-De^a),^b), Qu Shao-Bo‡^a)

(a) and (b) Simulated and measured cross-polarization electric field distributions in the x – o – z plane at 14.5 GHz, respectively. (d) and (e) Simulated and measured cross-polarization electric field distributions in the y – o – z plane at 14.5 GHz, respectively. (c) and (f) Normalized cross-polarization electric field intensity in the x – o – z plane and y – o – z plane at 14.5 GHz, respectively. The inset shows the field intensity in the x – o – y plane at z = 158.3 mm.