directivity pattern vs directivity

Both "directivity pattern" and "directivity" are correct, but they are used in different contexts. "Directivity pattern" refers to the directional characteristics of a device or system, while "directivity" on its own can be used to describe the property of being directive or the degree of directionality.

Last updated: April 01, 2024 • 923 views

This phrase is correct and commonly used in the context of describing the directional characteristics of a device or system.

"directivity pattern"

This phrase is used to refer to the specific directional characteristics of a device or system, such as a microphone or antenna.

Show examples from the web [+]

The HF transducer is mounted to an all-new 90ºx 60ºconstant directivity horn, designed with the goal of minimizing radiation pattern deterioration in oblique directions as more conventional horns are prone to doing.
Typically, for moderate to large events, the pattern of peak ground velocity reflects the pattern of the earthquake faulting geometry, with largest amplitudes in the near-source region, and in the direction of rupture (directivity).
With the new wide dispersion constant directivity horn, sound expands in a more rectangular pattern providing 90º horizontal x 60 º vertical coverage, with wide-frequency sound projected to the edges of the coverage area.

Alternatives:

directional pattern
beam pattern

This phrase is correct and can be used to describe the property of being directive or the degree of directionality.

"directivity"

This term can be used more broadly to describe the concept of directionality or the extent to which something is directive.

Show examples from the web [+]

φ Depression angle (lateral directivity parameter)
The innovating design allows to obtain an high vertical directivity and a high gain.
Wide sound directivity for flexible listening placement
This latter difference is due to lateral directivity (engine installation effects) and lateral attenuation.
This results in a non-uniform directionality of sound radiated laterally about the roll axis of the aircraft, referred to here as lateral directivity.
For propeller aircraft directivity variations are negligible and for these it may be assumed that
Specific Treatments of Ground-roll Segments, including the start-of-roll directivity function ΔSOR
At the opening of the receptacle of the compression driver Horn is mounted to control the directivity.
These antennas are highly appreciated for their strength, excellent quality/price ratio, high gain and elevated directivity.
In Tehran, sound and variable directivity thanks to Outline
An example is given where tungsten compensation is used to achieve high directivity even in the presence of element position errors.
Power response, or overall directivity, seems to be a poor correlation with subjective impression.
Fully adjustable during installation for an optimal distribution of sound in the listening area, thanks to the digital management of the directivity that extends the depth of coverage compared to traditional systems.
This directivity can also be expressed by means of other coordinate systems such as angular coordinate systems.
Installation effect: describes a variation in lateral directivity due to shielding, refraction and reflection caused by the airframe, engines and surrounding flow fields.
The energy fraction term accounts for the pronounced longitudinal directivity of aircraft noise and the angle subtended by the segment at the observer position.
The waveguide loaded tweeter matches the directivity of the woofer and results in a smooth transition from woofer to tweeter.
Booth 6384 will also host the Butterfly and Mini-COM.P.A.S.S. VLA; the latter is self-powered and fitted with sensors and DSP for its variable directivity (from 60 to 150 degrees): the only compact VLA on the international market offering this feature.
As the term ΛT(β,) accounted for lateral directivity as well as lateral attenuation, the latter can be extracted by subtraction.
where a2 = λ/dλ and ΔSOR is the start-of-roll directivity function defined by equations (2.7.51) and (2.7.52).

Alternatives:

directionality
degree of directionality

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directivity pattern vs directivity