CASSEGRAIN SATELLITE TELEVISION ANTENNA AND SATELLITE TELEVISION RECEIVER SYSTEM THEREOF

摘要

Disclosed is a Cassegrain satellite television antenna comprising a metamaterial panel arranged in front of a feed. The metamaterial panel comprises a core layer. The core layer comprises at least one core layer lamella. The core layer lamella comprises a sheet-shaped substrate and multiple artificial microstructures arranged on the substrate. Refractive indexes of the core layer lamella are in a circular distribution, the refractive indexes are identical at a same radius, and the refractive indexes decrease gradually as the radius increases. In the Cassegrain 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 Cassegrain satellite television antenna.