FRONT FEED SATELLITE TELEVISION ANTENNA AND SATELLITE TELEVISION RECEIVER SYSTEM THEREOF

摘要

Disclosed is a front feed satellite television antenna comprising a metamaterial panel. The metamaterial panel comprises a core layer and a reflective panel. The core layer comprises a core layer lamella. The core layer lamella comprises a circular area and multiple annular areas distributed around the circular area. Within the circular area and the annular areas, refractive indexes are identical at a same radius, and within the respective areas of the circular area and of the annular areas, the refractive indexes decrease gradually as the radius increases. The minimum value of the refractive indexes of the circular area is less than the maximum value of the refractive indexes of the annular area adjacent thereto. For two adjacent annular areas, the minimum value of the refractive indexes of the annular area at the inner side is less than the maximum value of the refractive indexes of the annular area at the outer side. In the front feed satellite television antenna of the present invention, conventional parabolic antenna is replaced by the sheet-shaped metamaterial panel, thus facilitating manufacturing and processing, and further reducing costs. In addition, the present invention also provides a satellite television receiver system having the front feed satellite television antenna.

主权项

1. A front-feed satellite television antenna, wherein the front-feed satellite television antenna comprises a metamaterial panel arranged behind a feed source; the metamaterial panel comprising a core layer and a reflective plate arranged at a surface of the core layer; the core layer comprising at least one core layer sheet; the core layer sheet comprising a sheet-like substrate and a plurality of artificial microstructures or holes arranged on the substrate; based on refractive index distribution, the core layer sheet being divided into a circular area in a middle position and a plurality of annular areas, which are distributed around the circular area and share a circle center with the circular area; refractive indices at a same radius in the circular area and annular areas being the same, and refractive indices in respective areas of the circular area and annular areas gradually decreasing with the increase of a radius; a minimum refractive index value in the circular area being smaller than a maximum refractive index value in the adjacent annular area; and with respect to two adjacent annular areas, a minimum refractive index value in an annular area on the inner side being smaller than a maximum refractive index value in an annular area on the outer side.