[[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.
Click here to learn more about the theory of '''[[Maxwell%27s_Equations#Computing_the_Far-Zone_Fields_from_Near-Zone_Data | Near-to-Far-Field Transformation]]'''.