A satellite dish antenna is a type of directional antenna used to send and receive radio frequency (RF) signals in a specific direction.
The basic design of a dish antenna consists of a metal reflecting dish with a small transmit/receive antenna called a "feed horn" at the focal point of the dish. The parabola has the geometric shape of a parabola, meaning that any electromagnetic wave incident on it is reflected back toward the focal point.
When a signal is transmitted from the feed horn (dipole), the electromagnetic wave is reflected towards the parabola and concentrated at a focal point. This creates a highly directional signal beam, which is directed towards a single point in space. When a signal is received, the process is reversed: the signal is collected in the feed horn after being reflected by the parabola.
