Print Email Facebook Twitter DragOnFly: Electronically steerable low drag aeronautical antenna Title DragOnFly: Electronically steerable low drag aeronautical antenna Author Silvestri, F. Benini, A. Gandini, E. Gerini, G. Martini, E. Maci, S. Vigano, M.C. Geurts, M. Toso, G. Monni, S. Publication year 2017 Abstract This paper presents design considerations for the development of wide-scanning antennas for on-craft satellite communications. A scanning coverage of 80° is required for this application over a 15% fractional bandwidth in Ka-band. A solution based on a phased array illuminating a passive superstrate is identified as the most promising. A fully-electronic beam-scanning is considered in order to reduce the overall thickness of the antenna architecture by avoiding mechanical rotational supports. This is beneficial for the application since a reduced thickness corresponds to a lower drag. Two kinds of superstrates were investigated, a flat solution and a flattened dome. In both cases, the deflecting structure is illuminated by a phased array and is represented as a surface characterized by an optimized phase shift distribution that allows to maintain a high gain level up to very large scan angles. A flatter gain profile compared to a typical cosine scan loss for planar phased arrays was achieved in both cases. Attention was devoted to the minimization of the thickness, which was significantly reduced in comparison to classical dielectric dome solutions. Subject 2015 Observation, Weapon & Protection Systems 2015 Nano TechnologyRT - Radar Technology OPT - OpticsTS - Technical SciencesInfostructuresInformation SocietyBeam deflectorDome antennasAntenna arraysAntenna phased arraysAntennasBandwidthDomesDragMicrowave antennasSatellite antennasSteerable antennasAntenna architectureBeam deflectorsDesign considerationsElectronic beam scanningFractional bandwidthsLarge scan anglePlanar phased arraysSatellite communicationsScanning antennas To reference this document use: http://resolver.tudelft.nl/uuid:b5b7e974-bbcb-4017-b91e-fb7426757a20 TNO identifier 766498 Publisher Institute of Electrical and Electronics Engineers IEEE ISBN 9788890701870 Source 11th European Conference on Antennas and Propagation, EUCAP 2017, 19-24 March 2017, Paris, France, 3423-3427 Article number 7928582 Document type conference paper Files To receive the publication files, please send an e-mail request to TNO Library.