Patent ID: 9035850
Filing Date: 2015-05-19
Classification: H01Q

Abstract:
1. A metamaterial for diverging an electromagnetic wave, comprising at least one metamaterial sheet layer, wherein refractive indices of the metamaterial sheet layer are distributed in a circular form with a center of the metamaterial sheet layer, and the refractive indices remain unchanged at a same radius and increase gradually with the radius; wherein the metamaterial sheet layer comprises a plurality of metamaterial units, each of the metamaterial units comprises a substrate and microstructures disposed on the substrate, the microstructures are man-made pores, for a same one of the metamaterial sheet layer, all the man-made pores are filled with a medium material having a refractive index which is smaller than that of the substrate, each of the metamaterial units comprises one man-made pore, the man-made pores of the metamaterial units at a same radius have a same volume, the man-made pores gradually decrease in volume as the radius increases, and the radius represents a distance from the respective metamaterial unit to the center of the metamaterial sheet layer.