A Study on Near-Field to Far-Field Transformation for Antenna Measurements in Non-Ideal Environments by using Spherical Harmonics

In this paper, we present a study on near-field to far-field transformation algorithms via a spherical wave expansion method for antenna measurements. We describe a time domain filtering procedure that allows high accurate far-zone results in non-ideal environments. Preliminary results demonstrate theta this technique is a promising tool for computational-assisted antenna measurement facilities.