Definitions for "Parabolic antenna"
This most frequent satellite antenna type is so-called because it is in the shape of a parabola, which has the purpose of focusing the received signal into one focal point located out in front of the dish.
An antenna having a main reflector surface that is a paraboloid or is shaped like a paraboloid. It has the property of reflecting parallel incoming signals to a single focal point.
An antenna in the shape of a parabola used to receive satellite transmissions. Generally referred to as a "dish". The parabolic dish is a reflector which focuses the satellite signal on the LNB, making the signal stronger. Most parabolic antenna dishes are of the "offset" type, with the LNB asymmetrically positioned. This prevents snow accumulating on the dish and reducing the signal.