Stuart Gregson MIET, MIoP, CEng, CPhys, CSci has BSc and MSc degrees in Physics from the University of Portsmouth, and a PhD from Queen Mary, University of London. He has special experience with near-field antenna measurement, finite array mutual coupling, computational electromagnetics and installed antenna performance prediction, and has published numerous peer-reviewed research papers. He is currently with Nearfield Systems Incorporated. John McCormick MIET, MIoP, FIScT, CPhys, CEng, CSci holds HNC Instrumentation Systems, BA Occupational Hygiene, BSc Natural Sciences/Physics, MSc Solid State Physics and PhD degrees from South Bank, Portsmouth and Open Universities successively. Within DERA, then BAE SYSTEMS and now SELEX SAS Edinburgh, from junior chemistry technician to lead radar systems engineer he has extensive experience in antenna, RCS and EW research and development. Clive Parini FIET is currently Professor of Antenna Engineering and Head of the Antenna and Electromagnetics Research Group at Queen Mary, University of London. In 1990 he jointly received the IET Measurements Prize for work on near-field reflector metrology. He was previously chairman of the IET Antennas and Propagation Professional Network Executive Team and an honorary editor for the IET Journal Microwaves, Antennas and Propagation.