Uncertainty Analysis for Spherical Near-Field Measurement
Michael H. Francis, Ronald C. Wittmann
A general approach is introduced for estimating uncertainties in far-field paramenters from spherical near-field measurements. Although the analysis is incomplete at present, we expect that as the measurement radius increases, our results will transform smoothly to the far-field case, where uncertainties depend on the on-axis gain and polarization of the probe and on the measurements in the far-field direction of interest.
and Wittmann, R.
Uncertainty Analysis for Spherical Near-Field Measurement, Antenna Measurement Techniques Association, Irvine, CA, USA, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=31432
(Accessed December 2, 2023)