Cassegrain Antenna

Описание: Cassegrain AntennaCassegrain antenna is a system composed of double reflecting mirrors. They use the same principle as Cassegrain telescope. Today, Cassegrain antennas are used in communication systems working in the millimetre wave range.Thanks to their high amplification factor and narrow directional pattern Cassegrain antennas are used in wireless communication systems of peer to peer type. They also have applications in radars and satellite communication systems.Cassegrain antenna consists of the main parabolic mirror and an auxiliary hyperbolic mirror. One of the double focuses of the antenna is situated in the middle of the transmitter. The other focus is situated in the focus of the parabola.An important advantage of Cassegrain antennas is the wide variety of sizes. Another advantage is their considerable tolerance relative to the location of transmitter. This allowed creating various designs of these antennas.The popularity of Cassegrain antennas is determined by economic factors. The diameter of the main mirror is more than 100 times greater than the wavelength. These antennas are cheaper and more effective than many other types of antennas.