Single-layer broadband planar antenna using ultrathin high-efficiency focusing metasurfaces

Hou Hai-Sheng, Wang Guang-Ming^†, Li Hai-Peng, Guo Wen-Long, Li Tang-jing, Cai Tong^‡

(color online) (a) Simulated focusing MS. (b) Simulated reflected electric field distribution in yoz-plane at 18 GHz. (c) Simulated reflected electric field distribution in xoz-plane at 18 GHz. (d) Power distribution of focusing wave at 18 GHz and distance to the MS.