Index on Radar Systems
Narrow beacon antennas
These antennas usually consist of a waveguide with many slotted antennas milled into one of its walls. Depending on the length of the antenna, a very narrow horizontal half-power beamwidth may be achieved. Vertically, these antennas have a very wide antenna pattern. These antennas are commonly used for maritime navigation radars. The radar can often be supplied with different antenna sizes on request.