Wiktionary
alt. 1 (context acoustics English) 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. 2 (context electronics communications English) The region within about half a wavelength from an electrically small antennaCharles Capps, EDN, August 16, 2001, pp. 95-102.. More specifically it is the region within the radiansphereWheeler, H.A.; "The Radiansphere around a Small Antenna"; Proceedings of the IRE Aug. 1959, Volume: 47 Issue:8 pp: 1325 - 133
10.1109/JRPROC.1959.287198 . n. 1 (context acoustics English) 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. 2 (context electronics communications English) The region within about half a wavelength from an electrically small antennaCharles Capps, EDN, August 16, 2001, pp. 95-10
. More specifically it is the region within the radiansphereWheeler, H.A.; "The Radiansphere around a Small Antenna"; Proceedings of the IRE Aug. 1959, Volume: 47 Issue:8 pp: 1325 - 1331. 10.1109/JRPROC.1959.287198 .
Wikipedia
Near field may refer to:
- Near-field (mathematics), an algebraic structure
- Near-field region, part of an electromagnetic field
-
Near field (Electromagnetism)
- Magnetoquasistatic field, the magnetic component of the electromagnetic near field
- Near-field communication (NFC) using the magnetic component of the electromagnetic near field (Magnetoquasistatic field)
Usage examples of "near field".
The bamboos at the corner of the house swayed slowly under a gentle night wind and through the twilight he could see dimly the fringe of trees at the border of the near field.
The trees across the near field were a patchwork of gray and yellow greens.
Tynan caught him just before the boy managed to scramble over the stone wall bordering the near field.