wavefront

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الإنجليزية - التركية
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الإنجليزية - الإنجليزية
An imaginary surface passing through points of a medium oscillating in phase
The continuous line or surface including all the points in space reached by a wave or vibration at the same instant as it travels through a medium
  The surface defined by the locus of points that have the same phase, i e , have the same path length from the source [After 2196]  Note 1:   The wavefront is perpendicular to the ray that represents an electromagnetic wave   Note 2:   The plane in which the electric and magnetic field vectors lie is tangential to the wavefront at every point   Note 3:   The vector that represents the wavefront indicates the direction of propagation   Note 4:   For parallel, i e , collimated, rays, the wavefront is plane   For rays diverging from a point, or converging toward a point, the wavefront is spherical   For rays with varying divergence or convergence, the wavefront has other shapes, such as ellipsoidal and paraboloidal, depending on the nature of the source
Three dimensional surface in space for which the field radiated by an antenna has the same phase at all points At a large distance R from an antenna, the wavefront is a spherical surface with radius R over the angular window established by the antenna pattern For most geometries encountered in remote sensing, the wavefront may be approximated by a plane tangent to the spherical surface, within a tolerance of much less than a wavelength over a spatial scale of several resolution cells
The straight surface of a plane wave, crest or trough A plane wave moves in a direction that is perpendicular to the wavefronts Click for a more detailed description Back to Top Back to Wave Index
(physics) an imaginary surface joining all points in space that are reached at the same instant by a wave propagating through a medium
The initial disturbance in a propagating wave
A surface connecting all field points (of electromagnetic energy) that are equidistant from the source
wavefront
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