*They can be placed farther from the surface of the antenna for faster near-field scanning for the purpose of far field computation.
*They measure near-fields "As Is" and do not require error correction or compensation.
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The figures below show the amplitude and phase distribution of the X and Y components the electric field slightly above the surface of the microstrip-fed patch antenna measured at 2.349GHz. Both 2D intensity plots and 3D surface plots are shown. The field amplitude is expressed in dBV/m, while the phase is expressed in degrees. The field scan data can be imported to [[EM.Cube]] with more visualization capabilities. For example, the field components can be combined to produce very informative vector field plots.