Caris, M.M.CarisKlöppel, F.F.KlöppelWilcke, J.J.WilckeBrehm, T.T.BrehmSieger, S.S.SiegerSommer, R.R.SommerStanko, S.S.StankoFrioud, M.M.FrioudHenke, D.D.HenkeMeier, E.E.MeierRenker, M.M.RenkerWellig, P.P.Wellig2022-03-142022-03-142018https://publica.fraunhofer.de/handle/publica/40352310.23919/IRS.2018.8448036In this paper, we present the upgraded MIRANDA-35 SAR system, which has been extended by three additional receiving channels. The adapted antenna configuration enables simultaneous interferometric and polarimetric SAR measurements. We describe the improved frontend setup and the new data acquisition including the chirp generation board. The first results from an airborne campaign in Switzerland conclude the paper and demonstrate the capabilities of the four-channel Ka-band sensor.en621conference paper