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.