An antenna used for sending or receiving radio signals that uses the principle of a parabolic mirror to focus incoming signals onto one reception point or direct the emissions of signals from a focal source point into a directed beam. Parabolic antennae are used extensively in radio communications, especially with satellites, and in radar. Also called dish antenna.
- Parabolic mirror
parabolic mirror A cone-shaped concave mirror with a rounded-off tip, whose cross-section is shaped like the tip of a parabola. Most of the light, radio waves, sound, and other radiation that enter the mirror straight on is reflected by the surface and converges on the focus of the parabola, where being concentrated, it can be […]
[puh-rab-uh-lahyz] /pəˈræb əˌlaɪz/ verb (used with object), parabolized, parabolizing. 1. to tell or explain in a parable or parables. [puh-rab-uh-lahyz] /pəˈræb əˌlaɪz/ verb (used with object), parabolized, parabolizing. 1. to form as a or paraboloid. /pəˈræbəˌlaɪz/ verb 1. (transitive) to explain by a parable /pəˈræbəˌlaɪz/ verb 1. (transitive) to shape like a parabola or paraboloid
[puh-rab-uh-loid] /pəˈræb əˌlɔɪd/ noun, Geometry. 1. a surface that can be put into a position such that its sections parallel to at least one coordinate plane are . /pəˈræbəˌlɔɪd/ noun 1. a geometric surface whose sections parallel to two coordinate planes are parabolic and whose sections parallel to the third plane are either elliptical or […]
[par-uh-breyk] /ˈpær əˌbreɪk/ noun 1. . /ˈpærəˌbreɪk/ noun 1. another name for brake parachute