Energy terms . 2014.
Parabolic dish — A high temperature (above 180 degrees Fahrenheit) solar thermal concentrator, generally bowl shaped, with two axis tracking. U.S. Dept. of Energy, Energy Information Administration s Energy Glossary … Energy terms
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
dish antenna — n. an antenna consisting of a dish shaped, usually concave parabolic, reflector, used to transmit or receive radio and TV signals, as from orbiting satellites * * * … Universalium
dish antenna — n. an antenna consisting of a dish shaped, usually concave parabolic, reflector, used to transmit or receive radio and TV signals, as from orbiting satellites … English World dictionary
Parabolic reflector — Parallel waves coming in to a parabolic mirror are focused at a point F A parabolic reflector (or dish or mirror) is a reflective device used to collect or project energy such as light, sound, or radio waves. Its shape is that of a circular… … Wikipedia
Parabolic trough — A parabolic trough is a type of solar thermal energy collector. It is constructed as a long parabolic mirror (usually coated silver or polished aluminum) with a Dewar tube running its length at the focal point. Sunlight is reflected by the mirror … Wikipedia
dish — I. noun Etymology: Middle English, from Old English disc plate, from Latin discus quoit, disk, dish, from Greek diskos, from dikein to throw Date: before 12th century 1. a. a more or less concave vessel from which food is served b. the contents… … New Collegiate Dictionary
dish aerial — noun directional antenna consisting of a parabolic reflector for microwave or radio frequency radiation • Syn: ↑dish, ↑dish antenna, ↑saucer • Hypernyms: ↑directional antenna • Hyponyms: ↑scanner … Useful english dictionary
dish antenna — noun directional antenna consisting of a parabolic reflector for microwave or radio frequency radiation • Syn: ↑dish, ↑dish aerial, ↑saucer • Hypernyms: ↑directional antenna • Hyponyms: ↑scanner … Useful english dictionary
dish — A parabolic reflector type of radio or radar antenna … Aviation dictionary
