We present the recently assembled flight models of the SIS mixer units (MU) for band 2 of the HIFI instrument for the Herschel satellite observatory. Design, device fabrication, most of the mixer hardware fabrication, space-qualification, and final assembly are all realized at KOSMA. Thanks to the modular design RF- and IF-performance of different parts of the MU are tested separately before final assembly. Latest test results show a noise temperature between 80 K in the band centre towards 220 K at the upper band edge at 2.8 K operating temperature. The mixer IF-ripple is below 2 dB over a 4-8 GHz bandwidth including the bias-T which provides a very high EMI and ESD protection. The mixer performance and design are discussed under the aspect of the careful trade off between performance, reliability, timely delivery, and resources.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    SIS flight mixers for band 2 of the HIFI instrument of the Herschel Space Observatory


    Beteiligte:
    Justen, M. (Autor:in) / Schultz, M. (Autor:in) / Tils, T. (Autor:in) / Teipen, R. (Autor:in) / Glenz, S. (Autor:in) / Putz, P. (Autor:in) / Honingh, C.E. (Autor:in) / Jacobs, K. (Autor:in)


    Erscheinungsdatum :

    2004-01-01


    Format / Umfang :

    171259 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    The Herschel HIFI Data Simulator

    Stutzki, J. / European Space Agency | British Library Conference Proceedings | 2005


    The Herschel-Heterodyne Instrument for the Far-Infrared (HIFI)

    de Graauw, T. / Caux, E. / Gusten, R. et al. | IEEE | 2004


    Broadband NbTiN based SIS mixers for HIFI Band 2

    Glenz, S. / Justen, M. / Putz, P. et al. | IEEE | 2002


    Broadband NbTiN Based SIS Mixers for HIFI Band 2

    Glenz, S. / Justen, M. / Puetz, P. et al. | British Library Conference Proceedings | 2002