This paper presents the design of the receiving antenna of an upcoming formation-flying synthetic aperture radar (FF-SAR) based on the CubeSat standard and on a preexisting spaceborne SAR of opportunity. The receiving antenna operates at X-band and is compliant with the imaging modes of the FF-SAR, namely a stripmap mode for signal-To-noise ratio improvement (IM1) and a High-Resolution Wide-Swath mode for the monitoring of large areas (IM2). A large reflector has been designed to meet the high-gain requirement in IM1, while the wide coverage needed in IM2 is ensured by a reconfigurable patch array feed. Full-wave analysis shows that the designed receiving antenna achieves 37.42 dBi gain in IM1 and 12.1 degree half-power beamwidth in IM2.
X-Band SAR Antenna Design for a CubeSat Formation-Flying Remote Sensing Mission / Di Martino, G.; Di Simone, A.; Iodice, A.; Riccio, D.; Ruello, G.; Grassi, M.; Graziano, M. D.; Moccia, A.; Renga, A.. - (2021), pp. 206-210. (Intervento presentato al convegno 6th International Forum on Research and Technology for Society and Industry, RTSI 2021 tenutosi a ita nel 2021) [10.1109/RTSI50628.2021.9597211].
X-Band SAR Antenna Design for a CubeSat Formation-Flying Remote Sensing Mission
Di Martino G.;Di Simone A.;Iodice A.;Riccio D.;Ruello G.;Grassi M.;Graziano M. D.;Moccia A.;Renga A.
2021
Abstract
This paper presents the design of the receiving antenna of an upcoming formation-flying synthetic aperture radar (FF-SAR) based on the CubeSat standard and on a preexisting spaceborne SAR of opportunity. The receiving antenna operates at X-band and is compliant with the imaging modes of the FF-SAR, namely a stripmap mode for signal-To-noise ratio improvement (IM1) and a High-Resolution Wide-Swath mode for the monitoring of large areas (IM2). A large reflector has been designed to meet the high-gain requirement in IM1, while the wide coverage needed in IM2 is ensured by a reconfigurable patch array feed. Full-wave analysis shows that the designed receiving antenna achieves 37.42 dBi gain in IM1 and 12.1 degree half-power beamwidth in IM2.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
