Crossword clues for directivity
The Collaborative International Dictionary
directivity \directivity\ n. the property of a microphone or antenna of being more sensitive to sounds coming from one direction than from another.
Syn: directionality.
Wiktionary
n. (context geology English) The effect of earthquake motion propagation being greater in the direction of the rupture
WordNet
n. the property of a microphone or antenna of being more sensitive in one direction than in another [syn: directionality]
Wikipedia
In electromagnetics, directivity is a figure of merit, usually 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 (which emits uniformly in all directions) radiating the same total power.
An antenna's directivity is a component of its gain; the other component is its (electrical) efficiency. Directivity is an important measure because most emissions are intended to go in a particular direction or at least in a particular plane (horizontal or vertical); emissions in other directions or planes are wasteful (or worse).
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.
Usage examples of "directivity".
There was a lot of fog have painted a radar picture with a directivity factor of swirling about this situation: different agendas by the four over six hundred million for a two-centimeter wavelength.