Type of parabolic antenna with a convex secondary reflector
Types of parabolic antenna
In telecommunications and radar, a Cassegrain antenna is a parabolic antenna in which the feed antenna is mounted at or behind the surface of the concave main parabolic reflector dish and is aimed at a smaller convex secondary reflector suspended in front of the primary reflector. The beam of radio waves from the feed illuminates the secondary reflector, which reflects it back to the main reflector dish, which reflects it forward again to form the desired beam. The Cassegrain design is widely used in parabolic antennas, particularly in large antennas such as those in satellite ground stations, radio telescopes, and communication satellites.
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In telecommunications and radar, a Cassegrainantenna is a parabolic antenna in which the feed antenna is mounted at or behind the surface of the concave...
Cassegrain reflector is a combination of a primary concave mirror and a secondary convex mirror, often used in optical telescopes and radio antennas,...
Cassegrain may refer to Cassegrain reflector, a design used in telescopes Cassegrainantenna, a type of parabolic antennaCassegrain (crater), on the Moon...
such as the Cassegrain and Gregorian, a secondary reflector is used to direct the energy into the parabolic reflector from a feed antenna located away...
The Moxon antenna or Moxon rectangle is a simple and mechanically rugged two-element parasitic array, single-frequency antenna. It takes its name from...
larger aperture antenna to gather enough radio energy to make them intelligible. The largest, a 70-meter (230 ft) Cassegrainantenna, is used for communication...
of the Solar System. It has a 3.7-meter (12 ft) diameter high-gain Cassegrainantenna to send and receive radio waves via the three Deep Space Network stations...
Nasmyth–Cassegrain or Cassegrain–Nasmyth, is a reflecting telescope developed by the Scottish inventor James Nasmyth. It is a modified form of a Cassegrain telescope...
with the MiG-29's N019 Rubin radar. N001 has a 1.075m antenna diameter twist-cassegrainantenna. A pulse-doppler design operating in the 3 cm band using...
development of modern microwave antennas; the parabolic antenna (the most common type), cassegrainantenna, lens antenna, slot antenna, and phased array. The ability...
NASA Cassegrain, Extremely high gain ~70 dBi. Corner reflector UHF TV antenna with "bowtie" dipole driven element at its center. Microwave horn antenna bandwidth...
this antenna in 1946. It is very popular in the United States. The antenna can be erected as horizontal dipole, as sloper, or an inverted-V antenna. With...
array antennas are typically used to create an antenna with a more desirable form factor than the conventional parabolic reflector or cassegrain reflector...
the beam-waveguide primary radiators of the Cassegrainantennas for satellite communications". Antennas and Propagation Society International Symposium...
distinction arises solely from different desirable radiation patterns of the antennas (near vertical for NVIS, near horizontal for conventional long-range skywave...
9S35 radar of the original Buk TELAR uses a mechanical scan of a Cassegrainantenna reflector, where the Buk-M2 TELAR design used a PESA, for tracking...
A satellite dish is a dish-shaped type of parabolic antenna designed to receive or transmit information by radio waves to or from a communication satellite...
An antenna farm, satellite dish farm or dish farm is an area dedicated to television or radio telecommunications transmitting or receiving antenna equipment...
Sivathanu Pillai Neelakantan Sivathanu Pillai designed and developed the CassegrainAntenna and high-power conical scanning feed system for the tracking radar...
bands. 2.5 m deployable Cassegrainantenna System operating in dual frequency bands (S and Ka bands) 1.5 m fixed CassegrainAntenna System operating in Ku...
cylindrical parabolic antenna at Ooty Radio Telescope Complex near Ooty, Tamil Nadu, India (Early 1970s) The 70 meter DSS 14 "Mars" antenna at Goldstone Deep...
new version used a more powerful 250 kW transmitter and a larger Cassegrainantenna. During tests of the monopulse systems, Ferranti engineers noticed...
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