Vertical Radiator PatternSeptember 30th Fact-of-the-Day
The azimuth radiation pattern of an isolated vertical radiator is perfectly circular because energy flows equally in all directions from a point source and points along a vertical radiator are point sources in azimuth. No other type of practical antenna has a perfectly circular radiation pattern. However, a variety of other types of antennas have radiation patterns that are approximately circular. Antennas that have radiation patterns that do not vary more than 3 dB in azimuth often are considered to be 'omnidirectional.' ©2004 Martek International All rights reserved.
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