Near-field Definition

noun
Alternative form of near field. (in physical acoustics)
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Alternative form of near field. (in radio-frequency electromagnetic technology)
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(acoustics) The region within a distance a fraction of a wavelength from a sound source. Accordingly, the outer boundary of the near-field region is closer for high-pitched sound than for low-pitched sound.

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(electronics, communication) The region within about half a wavelength from an electrically small antenna. More specifically it is the region within the radiansphere.

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adjective

In loudspeaker acoustics, referring to a region where the intensity of direct, unreflected sound from the source (such as a loudspeaker) is significantly dominant over any indirect or reflected sound.

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Other Word Forms of Near-field

Noun

Singular:
near-field
Plural:
near-fields

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