Paonessa, FabioFabioPaonessaVirone, GiuseppeGiuseppeVironeMatteoli, StefaniaStefaniaMatteoliBOLLI, PietroPietroBOLLIPUPILLO, GiuseppeGiuseppePUPILLOWijnholds, Stefan J.Stefan J.WijnholdsLingua, Andrea M.Andrea M.LinguaAddamo, GiuseppeGiuseppeAddamoPeverini, Oscar A.Oscar A.Peverini2020-12-282020-12-282018978-90-82598-73-5978-1-5386-3764-7http://hdl.handle.net/20.500.12386/29201In order to assess the polarimetric performance of phased arrays for radio astronomy, the Intrinsic Crosspolarization Ratio (IXR) can be adopted as a figure of merit. An innovative technique employing an Unmanned Aerial Vehicle (UAV) to measure the IXR of low-frequency instruments (VHF/UHF bands) has been recently exploited on a station of the Low Frequency Array (LOFAR) radio telescope. We present results from a spin flight measurement demonstrating 35 dB IXR in boresight, a value close to the performance limits of the current measurement system.ELETTRONICOenIn-Situ Verification of Aperture-Array Polarimetric Performance by Means of a Micro UAV: Preliminary Results on the LOFAR Low Band AntennaConference paper10.23919/URSI-AT-RASC.2018.84715972-s2.0-85055770475https://ieeexplore.ieee.org/document/8471597FIS/05 - ASTRONOMIA E ASTROFISICAERC sectors::Physical Sciences and Engineering::PE9 Universe sciences: astro-physics/chemistry/biology; solar systems; stellar, galactic and extragalactic astronomy, planetary systems, cosmology, space science, instrumentation::PE9_17 Instrumentation – telescopes, detectors and techniques