Dual-polarized lens antenna based on multimode metasurfaces
Wang Hao-Fang1, 2, Wang Zheng-Bin1, 2, †, Cheng Yong1, Zhang Ye-Rong1, ‡
       

(color online) Surface current distribution in the upper strips, the metal ground, and the lower strips in (a) mode 1, (b) mode 2, and (c) mode 3.