horn antenna

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horn antenna

See waveguide.

Horn Antenna


an antenna consisting of a widening metal funnel—the horn—and a wave guide coupled to it. Horn antennas are used for the directional radiation and reception of radio waves in the superhigh-frequency range and as radiators for lens and reflector antennas; they are also used as self-contained antennas in communications satellites and in equipment used in measurement technology. The radiation pattern of a horn antenna depends on the character of the field strength distribution at the mouth (the largest cross section) of the horn, which, in turn, is determined by the shape of the inner and outer surfaces of the horn and by the horn’s geometric dimensions.

Figure 1. Types of horn antennas: (a) pyramidal, (b) sectoral, (c) conical, (d) horn with a parabolic generatrix; (1) wave guide, (2) horn

Horns are classified according to shape as pyramidal (Figure 1, a), sectoral (Figure 1, b), and conical (Figure l, c). Others are versions of these three basic types and include, for example, antennas with a generatrix in the form of a broken line or a smooth curve and antennas with a smooth or a corrugated inner surface. Various versions are used to improve one or another of the antenna’s electrical characteristics, for example, to obtain a radiation pattern that is axially symmetrical or has low power levels in the side lobes. In some cases, a delay or accelerating lens is placed at the mouth of a horn antenna in order to correct the antenna’s directional properties (seeLENS ANTENNA). For the best match between a horn antenna and its wave guide and between the antenna and free space, a matching section and tuning elements are sometimes provided, and the surface of the horn has a parabolic generatrix (Figure 1, d).


Aizenberg, G. Z. Antenny uïtrakorotkikh voln [part 1]. Moscow, 1957.
Fradin, A. Z. Antenny sverkhvysokikh chastot. Moscow, 1957.
Kühn, R. Mikrovolnovye antenny. [Leningrad] 1967. [Translated from German.]


horn antenna

[′hȯrn an′ten·ə]
A microwave antenna produced by flaring out the end of a circular or rectangular waveguide into the shape of a horn, for radiating radio waves directly into space. Also known as electromagnetic horn; flare (British usage); hoghorn antenna (British usage); horn; horn radiator.
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By using the aperture integration method, the far-zone fields for the conical horn antenna on an infinite ground plane are given by
As we have seen in the previous section, the objective of the experimental system is to measure the transmission coefficient between two horn antennas in the W band (from 75 to 110 GHz), one of them being the feeder of a Fresnel reflector.
Mallahzadeh, "Quad ridged horn antenna for UWB applications," Progress In Electromagnetics Research, Vol.
As I grew and became more involved in astronomy and cosmology, I realized the importance of the Horn Antenna.
At once more ambiguous and more fully itself than Horn Antenna, Horn Perspective also comes closer to immersing us in an alternate world.
A vector network analyzer (HP 8753D) was used to determine the frequency response and the impulse response of the both RF blocks (Tx + Rx) including LOS channel, using horn antennas.
Link Microtek, a manufacturer of RF and microwave components and subsystems, has introduced an open-sided, linearly polarised horn antenna that operates over the wide frequency range 200MHz to 2GHz.
The system is configured as a standalone benchtop wireless link where transmitted power directly from the waveguide aperture is equivalent to a 7-dBi gain horn antenna with a 70-degree wide beam pattern that's useful to test and demonstrate various modulation schemes and data rates.
Dispersive or non-dispersive antennas have been commonly used for GPR systems, such as dipole antenna, Bow-tie antenna, TEM horn antenna, Vivaldi or tapered slot antenna (TSA), and equiangular spiral antenna [2].
The H-plane SIW based horn antenna has been introduced previously because of its compactness, high gain, planar geometry, and easy fabrication [28, 29].
Then we use the horn antenna in microwave anechoic chamber to measure the radiation power.
A standard double ridged horn antenna is used as a reference antenna.