BATTAGLIA, Paola MariaPaola MariaBATTAGLIABersanelli, MarcoMarcoBersanelliCUTTAIA, FRANCESCOFRANCESCOCUTTAIADavis, RichardRichardDavisWilkinson, AltheaAltheaWilkinsonFRAILIS, MarcoMarcoFRAILISFranceschet, CristianCristianFranceschetFRANCESCHI, ENRICOENRICOFRANCESCHIGALEOTTA, SamueleSamueleGALEOTTAGREGORIO, AnnaAnnaGREGORIOLeonardi, RodrigoRodrigoLeonardiLowe, StuartStuartLoweMandolesi, NAZZARENONAZZARENOMandolesiMARIS, MicheleMicheleMARISMeinhold, PeterPeterMeinholdMendes, LuisLuisMendesMENNELLA, ANIELLOANIELLOMENNELLAPoutanen,TorstiPoutanenSANDRI, MAURAMAURASANDRITAVAGNACCO, DanieleDanieleTAVAGNACCOTERENZI, LUCALUCATERENZITomasi, MaurizioMaurizioTomasiVILLA, FabrizioFabrizioVILLAZACCHEI, AndreaAndreaZACCHEIZonca, AndreaAndreaZoncaDE ROSA, Adriano GiuseppeAdriano GiuseppeDE ROSAMORGANTE, GIANLUCAGIANLUCAMORGANTEPearson, DaveDavePearsonVALENZIANO, LucaLucaVALENZIANO2023-02-082023-02-082009http://hdl.handle.net/20.500.12386/33261This document describes the results from the Hyper-matrix tuning activities. The Tuning is aimed at finding the optimal bias setting for the LNAs exploring the bias space changing simultaneously the four Vg bias (4-dimensional hypermatrix) powering each radiometer. The hypermatrixes come from the pre-tuning results, drawing for each of the 22 radiometers the bias space around the bias quadruplets expected to produce the best performance ( noise temperature and Isolation) . Since Isolation could not intrinsically be measured with the pre-tuning method, Isolation was measured for the first time only at the end of the HYM – TUNING. In add, for a subset (15 bias quadruplets for each radiometer) of values expected, from pre tuning results , to provide the best performance, also the drain voltage is tuned following a matrix scheme, changing the Vd on both the ACAs of the same radiometer. Hence, for this subset of values, the tuning is performed over a six dimensional hyper spaceELETTRONICOenResearch reportFIS/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