Metamaterials and metasurfaces for designing metadevices: Perfect absorbers and microstrip patch antennas
Liu Yahong, Zhao Xiaopeng
       

(color online) (a) One period of metasurface, (b) fabricated metasurface lens, (c) conventional phased array antenna, (d) phased array antenna with the metasurface lens, and (e) far-field radiation patterns of the phased array antennas.[93]