A side-band-separating (SBS) heterodyne mixer has been designed for the Atacama large millimeter array (ALMA) 602-720 GHz band, as it presents a great improvement over the current double-side-band configuration under development at the moment. Here we present design details and the results of extensive computer simulations of its performance. The designed SBS mixer exploits waveguide technology. At its core it consists of a quadrature hybrid, two LO injectors, and three dumping loads. The entire structure has been analyzed in a linear circuit simulator with custom code written to accurately (verified by HFSS finite element simulations) model the hybrid structures. This technique permitted an optimization of the dimensions and the study of the consequences of deviations from the ideal situation. It is estimated that the tolerances in several of the components should be kept at less than 3 /spl mu/m.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Design of a side-band-separating heterodyne mixer for band 9 of ALMA


    Contributors:
    Baryshev, A.M. (author) / Kooi, J. (author) / Mena, F.P. (author) / Lodewijk, C.F.J. (author) / Wild, W. (author)


    Publication date :

    2005-01-01


    Size :

    1075246 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    Side-band-separating heterodyne mixer for band 9 of ALMA.

    Mena, F.P. / Baryshev, A.M. / Kooi, J. et al. | IEEE | 2006


    P1_20 Sideband-Separating SIS Mixer at W-band

    Asayama, S. / Noguchi, T. / Ogawa, H. et al. | British Library Conference Proceedings | 2003


    WA1-3 Design and Characterization of Two Sideband SIS Mixer RF Hybrids for the ALMA Band 3 Receiver

    Dindo, P. / Claude, S. / Derdall, D. et al. | British Library Conference Proceedings | 2005


    Narrow band optical heterodyne detection

    Hanlon, J. / Jacobs, S. F. | NTRS | 1967