Page 29 - E BOOK MICROWAVE DEVICES 2023

HORN ANTENNA

A Horn antenna is a type of aperture antenna

which is specially designed for microwave

frequencies. The end of the antenna is widened

or in the horn shape. Because of this structure,

there is larger directivity so that the emitted

signal can be easily transmitted to long

distances. Horn antennas operate in microwave

frequency, so the frequency range of these

antennas is super high or ultra-high which

ranges from 300 MHz – 30 GHz.

These antennas are used as feed horns for big

antennas like parabolic antennas directive

antennas, etc. The benefits of using these

antennas are simple design & adjustment, low

SWR (standing wave ratio), moderate directivity,

and broad bandwidth.

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TYPES OF MICROWAVE ANTENNA