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directivity

The

directional factor is a characteristic value of antennas

which

is determined from the ratio of

the

radiation of

an

anisotropic directional antenna

to the isotropic radiation of an

omnidirectional

antenna

.

Directional antennas have distinct radiation characteristics with one main radiation direction. Omnidirectional antennas, on the other hand, radiate in all directions with the same radiation density. The ratio of the radiation density of a directional antenna or parabolic antenna in its main lobe and the omnidirectional radiation intensity of an omnidirectional antenna results in the directional factor.

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Englisch: directivity
Updated at: 23.01.2013
#Words: 57
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Translations: DE