This paper presents the design, fabrication, and performance of a 77 GHz monolithic GaAs PIN switch network developed for an automotive collision warning radar. The RF front end of the radar contains three control circuits which were initially realized by a hybrid approach using a duroid circuit and beam lead diodes. These three circuits were successfully integrated into a single 77 GHz MMIC. The MMIC uses vertical GaAs PIN diodes with a switching cutoff frequency of over 3000 GHz, attaining low insertion loss and high isolation. Insertion loss is comparable to that obtained with a hybrid circuit, while the isolation improved from a typical level of 16 dB for a single hybrid switch to over 25 dB in the MMIC. The use of GaAs PIN diodes also allowed switching speeds of less than 2 ns to be attained, a key requirement for the radar.


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    Titel :

    A monolithic GaAs PIN switch network for a 77 GHz automotive collision warning radar


    Beteiligte:
    Putnam, J. (Autor:in) / Barter, M. (Autor:in) / Wood, K. (Autor:in) / LeBlanc, J. (Autor:in)


    Erscheinungsdatum :

    1997


    Format / Umfang :

    4 Seiten, 1 Quelle




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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    Philips,P. / Schultz,W. / Valentine,R. et al. | Kraftfahrwesen | 1985


    Collision Warning Radar Interference

    Hischke, M. / Grumman, N. / Intelligent Transportation Society of America | British Library Conference Proceedings | 1996