High-frequency microelectromechanical systems (RF-MEMS) exhibit excellent electrical properties at high RF frequencies as W-band. RF-MEMS subsystems are investigated for beamsteering of automotive radar sensors based on smart antennas. Two beamsteering concepts are investigated: RF-MEMS phase shifters and RF-MEMS power distribution networks feeding a beamforming network such as a Rotman lens. The design of RF-MEMS subsystems starts with the optimization of coplanar waveguides (CPWs) and coplanar passive elements, as bends and T junctions. Thermally decoupled W-band RF-MEMS switches are developed to comply with the stringent temperature compliance requirements of automotive applications. Finally, hermetic packaging, RF feedthrough and flip-chip integration concepts are discussed.


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    Title :

    RF-MEMS subsystems for automotive radar sensors with smart antennas


    Additional title:

    RF-MEMS-Subsysteme für Fahrzeug-Radarsensoren mit intelligenten Antennen


    Contributors:
    Schöbel, J. (author) / Schneider, M. (author) / Buck, T. (author) / Reimann, M. (author) / Ulm, M. (author)


    Publication date :

    2003


    Size :

    6 Seiten, 19 Bilder, 17 Quellen



    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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