directivity
directivity (n)
- plural
- directivities
English Definitions:
directivity, directionality (noun)
the property of a microphone or antenna of being more sensitive in one direction than in another
"the antenna received signals with no directivity"
directivity, directiveness (noun)
the quality of being directive
directivity (Noun)
The effect of earthquake motion propagation being greater in the direction of the rupture
Directivity
In electromagnetics, directivity is a figure of merit for an antenna. It measures the power density the antenna radiates in the direction of its strongest emission, versus the power density radiated by an ideal isotropic radiator radiating the same total power. An antenna's directivity is a component of its gain; the other component is its efficiency. Directivity is an important measure because most emissions are intended to go in a particular direction or at least in a particular plane; emissions in other directions or planes are wasteful. The directivity of an actual antenna can vary from 1.76 dBi for a short dipole, to as much as 50 dBi for a large dish antenna.
Directivity
In electromagnetics, directivity is a parameter of an antenna or optical system which measures the degree to which the radiation emitted is concentrated in a single direction. It is the ratio of the radiation intensity in a given direction from the antenna to the radiation intensity averaged over all directions. Therefore, the directivity of a hypothetical isotropic radiator is 1, or 0 dBi. An antenna's directivity is greater than its gain by an efficiency factor, radiation efficiency. Directivity is an important measure because many antennas and optical systems are designed to radiate electromagnetic waves in a single direction or over a narrow-angle. By the principle of reciprocity, the directivity of an antenna when receiving is equal to its directivity when transmitting. The directivity of an actual antenna can vary from 1.76 dBi for a short dipole to as much as 50 dBi for a large dish antenna.
Citation
Use the citation below to add this dictionary page to your bibliography:
Style:MLAChicagoAPA
"directivity." Kamus.net. STANDS4 LLC, 2024. Web. 28 Mar. 2024. <https://www.kamus.net/english/directivity>.
Discuss this bahasa indonesia directivity translation with the community:
Report Comment
We're doing our best to make sure our content is useful, accurate and safe.
If by any chance you spot an inappropriate comment while navigating through our website please use this form to let us know, and we'll take care of it shortly.
Attachment
You need to be logged in to favorite.
Log In