Dictionary of Meaning
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Horn (telecommunications)
*** Shopping-Tip: Horn (telecommunications)
In
telecommunications, the term '''''horn''''' has the following meanings:
* In
radio transmission (telecommunications) 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.
** ''Note 1:'' Horns may have one or more expansion curves, i.e., longitudinal cross sections, such as elliptical, conical, hyperbolic, or parabolic curves, and not necessarily the same expansion curve in each (
E-plane and H-plane) cross section.
** ''Note 2:'' A very wide range of beam patterns may be formed by controlling horn dimensions and shapes, placement of the reflector, and reflector shape and dimensions.
* A portion of a waveguide in which the cross section is smoothly increased along the axial direction.
* In audio systems, a tube, usually having a rectangular transverse cross section and a linearly or
exponential growth exponentially increasing cross-sectional area, used for radiating or receiving acoustic waves. ''(Source: from
Federal Standard 1037C and from
MIL-STD-188)''. These devices perform a
mechanical impedance matching for
Acoustics acoustic energy.
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See also
*
Horn (telecommunications)
*
Feed horn
*
Horn antenna
*
Horn (telescope)
Category:Telecommunications equipment
