feed horn

См. также в других словарях:

• Feed horn — In satellite dish and antenna design parlance, a feedhorn (or feed horn) is a horn antenna used to convey radio waves between the transceiver (transmitter and/or receiver) and the reflector. The feedhorn also selects the polarity of the waves to… …   Wikipedia

• Feed — may refer to:* As a verb, to feed means to give food to, or to eat food. See feeding. * Feed as a noun often refers to animal feed, food given to or meant for livestock (see also fodder )Inserting one thing into another: * Card feed * Paper… …   Wikipedia

• Horn antenna — Pyramidal microwave horn antenna, with a bandwidth of 0.8 to 18 GHz. A coaxial cable feedline attaches to the connector visible at top. This type is called a ridged horn; the curving fins visible inside the mouth of the horn increase the antenna… …   Wikipedia

• Horn (telecommunications) — In telecommunications, the term horn has the following meanings:* In radio transmission, an open ended waveguide, of increasing cross sectional area, which radiates directly in a desired direction or feeds a reflector that forms a desired beam.… …   Wikipedia

• Horn (telescope) — A horn is a stationary radio telescope. Horns were originally built to observe specific objects in the sky, and preceded the more commonly known movable dishes used today. See also * Feed horn * Horn (telecommunications) * Horn Antenna, Bell Labs …   Wikipedia

• Feed (novel) — infobox Book | name = Feed image caption = author = Matthew Tobin Anderson country = United States language = English genre = Science fiction novel publisher = Miramax Books release date = 2002 media type = Print (Hardback Paperback) pages = isbn …   Wikipedia

• John Horn High School — Infobox US school name = Dr. John Horn High School image caption = location = 3300 E. Cartwright Rd. Mesquite, Texas, 75181 USA coordinates = coord|32.73194, 96.556864 motto = established = 2000 type = Free public district = Mesquite Independent… …   Wikipedia

• Antenna feed — The antenna feed refers to the components between an antenna and an amplifier (HPA and LNB or LNA).For satellite communications the feed might consist of the Antenna Horn, Orthomode transducer, polarizator, Frequency diplexer, Waveguide,… …   Wikipedia

• feedhorn — feed·horn (fēdʹhôrn ) n. A satellite dish component that captures the signal reflected from the dish surface and channels it into an amplifier. * * * …   Universalium

• 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

• Conical scanning — is a system used in early radar units to improve their accuracy, as well as making it easier to steer the antenna properly to point at a target. Conical scanning is similar in concept to the earlier lobe switching concept used on some of the… …   Wikipedia