parabolic mesh antenna

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• Parabolic antenna — A parabolic satellite communications antenna at Erdfunkstelle Raisting, the biggest facility for satellite communication in the world, in Raisting, Bavaria, Germany. It has a Cassegrain type feed. A parabolic antenna is an antenna that uses a… …   Wikipedia

• Metamaterial antenna — This Z antenna tested at the National Institute of Standards and Technology is smaller than a standard antenna with comparable properties. Its high efficiency is derived from the Z element inside the square that acts as a metamaterial, greatly… …   Wikipedia

• Dipole antenna — A schematic of a half wave dipole antenna connected to an unbalanced coaxial cable. Better practice is to connect the balanced dipole to the unbalanced line with a balun. A dipole antenna is a radio antenna that can be made of a simple wire, with …   Wikipedia

• History of radar — The history of radar starts with experiments by Heinrich Hertz in the late 19th century that showed that radio waves were reflected by metallic objects. This possibility was suggested in James Clerk Maxwell s seminal work on electromagnetism.… …   Wikipedia

• Very-small-aperture terminal — A 2.5 m parabolic dish antenna for bidirectional satellite Internet access A very small aperture terminal (VSAT), is a two way satellite ground station or a stabilized maritime Vsat antenna with a dish antenna that is smaller than 3 meters. The… …   Wikipedia

• Venera 1 — Infobox Spacecraft Name = Venera 1 Caption = Venera 1 spacecraft Organization = USSR Major Contractors = Mission Type = Fly by of Venus Flyby Date = May 19, 1961 Launch = February 12, 1961 Launch Vehicle = Modified SS 6 (Sapwood) with 2nd… …   Wikipedia

• Satellite dish — A C band satellite dish …   Wikipedia

• Arecibo Observatory — Arecibo Radio Telescope Organization SRI International, NSF, Cornell University Location …   Wikipedia

• radio — /ray dee oh /, n., pl. radios, adj., v., radioed, radioing. n. 1. wireless telegraphy or telephony: speeches broadcast by radio. 2. an apparatus for receiving or transmitting radio broadcasts. 3. a message transmitted by radio. adj. 4. pertaining …   Universalium

• Algonquin Radio Observatory — The Algonquin Radio Observatory (ARO) is a radio telescope research facility located in the Algonquin Provincial Park in Ontario, Canada. The site s primary instrument is a major 46 m (150 ft) parabolic dish radio antenna. This instrument is… …   Wikipedia

• P-30 radar — Country of origin  Soviet Union Introduced 1955 Number built E band/F ba …   Wikipedia