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A feed horn (or feedhorn) is a small horn antenna used to couple a waveguide to e.g. a parabolic dish antenna or offset dish antenna for reception or transmission of microwaves. A typical application is the use for satellite television reception with a satellite dish. In that case the feed horn can either be a separate part used together with e.g. a "low-noise block downconverter" (LNB), or more typically today is integrated into a "low-noise block feedhorn" (LNBF).
A feedhorn (or feedhorn) is a small horn antenna used to couple a waveguide to e.g. a parabolic dish antenna or offset dish antenna for reception or...
and microwave frequencies, above 300 MHz. They are used as feed antennas (called feedhorns) for larger antenna structures such as parabolic antennas,...
low-gain type, such as a half-wave dipole or (more often) a small horn antenna called a feedhorn. In more complex designs, such as the Cassegrain and Gregorian...
feed is usually also defined to include the feed antenna (feedhorn) which emits or receives the radio waves. Particularly in transmitters, the feed system...
subtends at the feedhorn is typically 10–15°, as opposed to 120–180° the main reflector subtends in a front-fed dish. Therefore, the feedhorn must be longer...
reception, and decrease noise. A cantenna can be used as a satellite dish feedhorn. The 5.5 GHz cantenna dimensions are almost perfect in that they make...
aperture terminal (VSAT) antenna feed or a terrestrial microwave radio feed; for example, OMTs are often used with a feedhorn to isolate orthogonal polarizations...
signal slightly to one side of the antenna's boresight and then rotate the feedhorn to make the lobe rotate around the boresight line. A target centered on...
the LNB in association with an OMT, orthogonal mode transducer to the feed-horn that faces the reflector parabolic dish. This is opposed to other types...
take advantage of large feeding pits excavated by the bat ray (Myliobatis californica) for shelter and food. As they mature, horn sharks shift into shallower...
consists of several components with different functions, including the feedhorn at the front of the unit, which resembles a funnel and has the task of...
ῥινόκερως (rhinókerōs) 'nose-horned'; from ῥίς (rhis) 'nose', and κέρας (kéras) 'horn'; pl.: rhinoceros or rhinoceroses), commonly abbreviated to rhino, is a member...
telescope designs with the feed located on the telescope's beam axis. The offset support arm houses a retractable prime focus feedhorn in front of the 8 m subreflector...
snow, or ice on the uplink or downlink antenna reflector, radome, or feedhorn. Rain fade is not limited to satellite uplinks or downlinks, as it can...
to produce a pattern of eight stacked beams, recreating the multiple feedhorn pattern in a small box that was inexpensive to implement. The system was...
antenna caused by the masking effect of other antenna parts, such as a feedhorn or a secondary reflector, which parts obstruct the radiation path. This...
a feed to the receiver or from the transmitter is placed at the focus, the feed typically consisting of a horn antenna. The phase centre of the feed horn...
unique feature which enhanced its Spacetrack usefulness. A variable-focus feedhorn provided a wide beam for detection and a narrow beamwidth for tracking...