ATIS Telecom Glossary
Friday, August 22, 2014

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wavefront
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.

 

 

 

 

 

 

 

 

 

 



 
These definitions were prepared by ATIS Committee PRQC
 
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