Stuart Gregson is director of operations and research at Next Phase Measurements and visiting professor at Queen Mary University of London. He has over thirty years' experience across space, aerospace, and communications. His work spans near-field measurement, mutual coupling, CEM, radome prediction, and compact range design. He has authored major texts, published extensively, taught widely, and received multiple AMTA awards. He is a Fellow of AMTA, IET, the Institute of Physics.Marc Dirix is an applications engineer at Albatross Projects Belgium (Emerson & Cuming Anechoic Chambers) and a visiting researcher at the institute of High Frequency Technology at RWTH Aachen University. He received his PhD in information and communication technology from the RWTH Aachen University. He has twenty years' experience in designing and validating compact antenna test ranges, spherical and planar near-field antenna measurement ranges, and absorber material development. He is a senior member of the AMTA and the IEEE.