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Near field may refer to: *
Near-field (mathematics) In mathematics, a near-field is an algebraic structure similar to a division ring, except that it has only one of the two distributive laws. Alternatively, a near-field is a near-ring in which there is a multiplicative identity and every non-zero ...
, an algebraic structure * Near-field region, part of an electromagnetic field * Near field (electromagnetism) **
Magnetoquasistatic field A magnetoquasistatic field is a class of electromagnetic field in which a slowly oscillating magnetic field is dominant. A magnetoquasistatic field is typically generated by ''low-frequency'' induction from a magnetic dipole or a current loop. The ...
, the magnetic component of the electromagnetic near field **
Near-field communication Near-field communication (NFC) is a set of communication protocols that enables communication between two electronic devices over a distance of 4 cm (1 in) or less. NFC offers a low-speed connection through a simple setup that can be u ...
(NFC) using the magnetic component of the electromagnetic near field (magnetoquasistatic field)


See also

* Near-field magnetic induction communication, a technique for deliberately limited-range communication between devices **
Near-field communication Near-field communication (NFC) is a set of communication protocols that enables communication between two electronic devices over a distance of 4 cm (1 in) or less. NFC offers a low-speed connection through a simple setup that can be u ...
(NFC), a set of application protocols based on this *
Near-field optics Near-field optics is that branch of optics that considers configurations that depend on the passage of light to, from, through, or near an element with subwavelength features, and the coupling of that light to a second element located a subwavelen ...
*
Near-field scanning optical microscope Near-field scanning optical microscopy (NSOM) or scanning near-field optical microscopy (SNOM) is a microscopy technique for nanostructure investigation that breaks the far field resolution limit by exploiting the properties of evanescent waves ...
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