View example sentences, synonyms and word forms for Directivity.
Directivity
Directivity meaning
A measure of the performance of an antenna compared to an isotropic antenna; the ratio of the maximum value of radiation intensity to the average radiation intensity. | Anisotropy in the propagation of earthquake waves in the direction of rupture. | Directionality
Synonyms of Directivity
Example sentences (9)
Above and below the ends of the more or less rectangular ribbon, there is less audible output due to phase cancellation, but the precise amount of directivity depends on ribbon length.
Clearly then, sensitivity does not correlate precisely with efficiency, as it also depends on the directivity of the driver being tested and the acoustic environment in front of the actual loudspeaker.
Directive gain or directivity is a different measure which does not take an antenna's electrical efficiency into account.
Directivity is an important issue because it affects the frequency balance of sound a listener hears, and also the interaction of the speaker system with the room and its contents.
Reciprocity justifies taking the properties of a receiving antenna, such as efficiency, directivity, and gain, to be those of that antenna when used for transmission.
That is, : An isotropic antenna, meaning one with the same radiation intensity in all directions, therefore has directivity 1 in all directions independently of its efficiency.
The smaller the driver, the higher the frequency where this narrowing of directivity occurs.
The sound field is as close to the directivity of an actual monopole source as local geometry allows.
The sound field may be similar to that created by oscillatory flow from a pipe, except for presence of the supersonic jet structure which can strongly modify the directivity.