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