Grooved horn radiator

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Grooved horn radiator for 3.7 - 6 GHz with a transition to coaxial cable with SMA connector

Grooved horn radiators are conical horn radiators with a corrugated surface in the area of ​​the aperture .

In a wide design, the grooved horn radiators have an almost constant and uniform radiation angle in both the E and H plane. The angle of radiation can be between 20 ° and 70 °. Special features of this antenna are the high side lobe attenuation and the low internal losses.

A narrow design results in a frequency-dependent radiation characteristic that is also uniform in the E and H planes. The bandwidth of this antenna is one octave . Beam angles from 7 ° to 40 ° can be realized.

Grooved horn radiators are usually attached to the LNBs of satellite reception systems.
Grooved horn radiator with integrated circular polarization filter, Kathrein UAS 52 ( TV-SAT 1987)

Due to the circular symmetry, these horn antennas can be produced for all types of polarization . That is why they are preferably used on the LNB , a component for satellite reception.




  • AD Olver, PJB Clarricoats, L. Shafai, AA Kishk: Microwave Horns and Feeds . Institution of Engineering and Technology, 1994, ISBN 978-0-852-96809-3