The near field and far field are regions of the electromagnetic (EM) field around an object, such as a transmitting antenna, or the result of radiation...

pattern may be found using a near-field scanner, and the radiation pattern deduced from it by computation. The far-field radiation pattern can also be...

Near-field communication (NFC) is a set of communication protocols that enables communication between two electronic devices over a distance of 4 cm (1+1⁄2 in)...

than the excitation wavelength, resulting in an evanescent field (or near-field) on the far side of the aperture. When the sample is scanned at a small...

Thus, EMR is sometimes referred to as the far field, while the near field refers to EM fields near the charges and current that directly produced them, specifically...

categories: Near and far field. In near field or non-radiative techniques, power is transferred over short distances by magnetic fields using inductive...

oxygen. A changing electromagnetic field which is physically close to currents and charges (see near and far field for a definition of "close") will have...

sub-wavelength resolution at visible wavelengths using near-field optical techniques. Arago spot Near and far field, the general principle in electromagnetism Ohtsu...

create a field near the AUT that looks approximately like a plane-wave. The far-field range was the original antenna measurement technique, and the simplest;...

has a wavelength (λ) of 22.1 meters. The crossover point between near-field and far-field occurs at approximately λ/2π. At this frequency the crossover occurs...

microwave antennas. Determination of a far-field radiation pattern constitutes the primary application of antenna near-field scanners. This novel technique offered...

define the near and far field approximations. Essentially, if Fresnel number is small – less than roughly 1 – the beam is said to be in the far field. If Fresnel...

diameter) and λ {\displaystyle {\lambda }} is the wavelength of the radio wave. This distance provides the limit between the near and far field, allowing...

radiometry and scalar diffraction in a manner that emphasizes physical understanding. Another derivation is to take the far-field limit of the near-field transmission...

The Poppy Field near Argenteuil (French: Coquelicots) is an oil-on-canvas landscape painting by the French Impressionist Claude Monet, completed in 1873...

waves, there are optical fields, and terms such as near- and far-field limits for diffraction. In practice though, the field theories of optics are superseded...

this phenomenon. These are the near field radiation and the far field radiation. As implied by its description, the far field escapes beyond the object. It...

speckles near-field speckles. See near and far field for a more rigorous definition of "near" and "far". The statistical properties of a far-field speckle...

defined by a field of view angle (in the 'y' direction), as well as an aspect ratio. Further, a set of z-planes define the near and far bounds of the...

(primary and secondary) and a core: the current in the primary wire generates a magnetic field in the core, which in turn induces an electric field in the...

Kennelly–Heaviside layer Link budget Mobility model Nakagami fading Near and far field Propagation graph Radio atmospherics Radio frequency Radio horizon...

as though it were static - hence it is called quasi-static. See near and far field and multipole expansion. In particular, the inverse distance 1 / ‖ x...

Last and First Men: A Story of the Near and Far Future is a "future history" science fiction novel written in 1930 by the British author Olaf Stapledon...

simultaneously and bidirectionally. The additional wire pair usage and growing bandwidth increases the need to keep NEXT in check. Far-end crosstalk (FEXT)...

produced both in the near and far fields, routinely recorded and surveyed in recent events, very often remembered in historical accounts and preserved in the...

wave equation Mathematical descriptions of the electromagnetic field Near and far field Sinusoidal plane-wave solutions of the electromagnetic wave equation...

terms were used before then with local British and American meanings: the near or far east of a field, village or shire. There was a linguistic predisposition...

George (2003). "Near and far-field effects of tsunamis generated by the paroxysmal eruptions, explosions, caldera collapses and massive slope failures...

In antenna engineering, sidelobes are the lobes (local maxima) of the far field radiation pattern of an antenna or other radiation source, that are not...

signals. Bell test experiments Delayed-choice quantum eraser Light Near and far field Quantum teleportation SETI Institute Synchronicity Wheeler–Feynman...