Difference between revisions of "Fraunhofer Region"
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Fraunhofer Region
</dt>
That region of the field in which
the energy flow from an antenna
proceeds essentially as though coming from a point source located in the
vicinity of the antenna.
</dd>
''If the antenna has a well-defined aperture a in a given aspect, the
Fraunhofer region in that aspect is commonly taken to exist at distances
greater than 2a2 /Missing Image:img src="SP7-f_files/lambdasm.html" from the
aperture, Missing Image:img src="SP7-f_files/lambdasm.html" being the wavelength. [[/a>|/a>
]]</dd>
References
This article is based on NASA's Dictionary of Technical Terms for Aerospace Use
