[[Image:NEOWEB11.png|thumb|400px|NeoScan field probe scanning the surface of a microstrip patch antenna at 2.4GHz.]]
== A Low-Cost Alternative to Costly Anechoic Chambers and Much More... ==
{{#ev[[Image:youtube|https://www.youtubeNEOWEB11.com/watch?v=sjG2aua-4mkpng|400thumb|right450px|Characterizing an S-band NeoScan field probe scanning the surface of a microstrip-fed patch antennaat 2.|frame}}4GHz.]]
[[NeoScan]] systems can be used as an essential tool for characterization, test and evaluation of antennas and phased array systems. It is a well-established fact that once you have an accurate estimate of the aperture fields, you can compute the far-field radiation patterns of an antenna with reasonable accuracy. This fact is based on the equivalence principle and the Huygens theory in electromagnetics. Time domain electromagnetic simulation tools such as [[EM.Tempo]] use a near-to-far-field transformation based on this principle to compute the far-zone fields of any radiating structure.
== NeoScan vs. Conventional Near-Field Scanning Systems ==
{{#ev:youtube|https://www.youtube.com/watch?v=sjG2aua-4mk|400|right|Characterizing an S-band microstrip-fed patch antenna.|frame}}
{{#ev:youtube|https://www.youtube.com/watch?v=l5KjauYge5o|400|right|Mapping the near-fields of a 64-element X-band patch antenna array with a corporate feed network.|frame}}