Bicone Antenna-Function and basics of Bicone
This page describes function and basics of Bicone Antenna.
Most of the microwave antennas are directional in nature. There are many applications which require omnidirectional antenna.
The difference between directional and omnidirectional antenna is that directional one radiates EM waves in particular direction while omnidirectional radiates in all the directions. For example, simple dipole is omnidirectional antenna and Horn is a directional antenna.
Fig.1 Bicone Antenna
One of the most popular omnidirectional antenna is Bicone Antenna. Figure depicts the arrangement. The signal is fed to the antenna through a circular waveguide. The waveguide ends in a flared cone.
One more cone is attached above the lower one. This upper cone acts as reflector which helps radiate the EM waves equally in all the directions.
Bicone antenna generates very narrow vertical beam width.
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