Demostradores de los módulos posteriores de 44 GHz para la misión Planck

Abstract

This communication deals with the implemented assemblies and characterisation test results of several Back End Modules at 44 GHz for the Planck Mission of the European Space Agency (ESA), which are low noise and broadband (20%) receivers having direct conversion to DC. They are parts of the 44 GHz radiometers. In order to perform integration tests, before the integration of Flight Model units, some representative demonstrators have been manufactured and tested. These demonstrators will be integrated in Jodrell Bank Observatory (Manchester, England) with the Front End Modules made there. Main magnitudes tested are effective bandwidth, RF to DC response, noise temperature, linearity, input matching, video bandwidth and knee frequency of low frequency 1/f noise at the output.