Neueste Zugänge

  • A flexible dielectric leaky-wave antenna at 160 GHz 

    Beitrag zu einer Konferenz
    Geiger, Martin; Hitzler, Martin; Waldschmidt, Christian (Universität Ulm, 2017)
    Flexible antennas provide the opportunity to place them on bent or moving surfaces. For leaky-wave antennas the mechanical flexibility offers a second possibility to modify the beam direction besides the frequency scanning ...
  • 77 GHz radar-based altimeter for unmanned aerial vehicles 

    Beitrag zu einer Konferenz
    Hügler, Philipp; Geiger, Martin; Waldschmidt, Christian (Universität Ulm, 2018)
    For multi-copter unmanned aerial vehicles (UAVs) sensing of the actual altitude is an important task. Many functions providing increased flight safety and easy maneuverability rely on altitude data. Commonly used sensors ...
  • RCS measurements of a human hand for radar-based gesture recognition at E-band 

    Beitrag zu einer Konferenz
    Hügler, Philipp; Geiger, Martin; Waldschmidt, Christian (Universität Ulm, 2016)
    This paper presents monostatic radar cross section (RCS) measurements of a human hand in the frequency range from 60GHz to 90 GHz. These values are important parameters for system designs in the emerging field of radar-based ...
  • Enhanced angle estimation accuracy of ultra compact radars inspired by a biomimetic approach 

    Beitrag zu einer Konferenz
    Grüner, Patrik; Chaloun, Tobias; Waldschmidt, Christian (Universität Ulm, 2017)
    The theoretical and experimental evaluation of using biomimetic antenna arrays (BMAAs) in an angle sensing radar system is presented. This ultra compact antenna system can enhance the angle estimation accuracy for radar ...
  • Towards a mm-wave planar biomimetic antenna array with enhanced phase sensitivity 

    Beitrag zu einer Konferenz
    Grüner, Patrik; Chaloun, Tobias; Waldschmidt, Christian (Universität Ulm, 2016)
    The design and measurements of a two-element biomimetic antenna array is presented with enhanced phase sensitivity at 20 GHz using planar structures only. The antenna array hereby mimics the hearing system of the parasitoid ...
  • Scattering center determination for integrated antenna measurements at mm-wave frequencies 

    Beitrag zu einer Konferenz
    Böhm, Linus; Waldschmidt, Christian (Universität Ulm, 2017)
    In this paper the results of integrated antenna measurements are analyzed to identify the main reflection locations when measuring with wafer probes. Two different approaches are described and the measurement results for ...
  • Wide-angle scanning cavity antenna element for mobile satcom applications at Ka band 

    Beitrag zu einer Konferenz
    Chaloun, Tobias; Waldschmidt, Christian; Menzel, Wolfgang (Universität Ulm, 2016)
    A novel dual linearly polarized cavity antenna with excellent scan performance up to 60◦ in both E- and H-plane is presented. The highly integrated antenna element for Ka band Satcom on the move applications is operating ...
  • Active transmitarray submodule for K/Ka band satcom applications 

    Beitrag zu einer Konferenz
    Chaloun, Tobias; Hillebrand, Christoph; Waldschmidt, Christian; Menzel, Wolfgang (Universität Ulm, 2015)
    A novel concept for an active transmitarray architecture for K/Ka Band Satcom applications is presented. The highly-integrated antenna system is based on planar multilayer arrangement covering both Satcom frequency bands ...
  • The challenges of measuring Integrated antennas at millimeter-wave frequencies 

    Wissenschaftlicher Artikel
    Böhm, Linus; Bögelsack, Frank; Hitzler, Martin; Waldschmidt, Christian (Universität Ulm, 2017)
    The increasing demand for radar sensors and the wide distribution of handheld communication devices push the development of low-cost components with a small form factor. One approach to achieve smaller, low-cost devices ...
  • Influence of the wafer chuck on integrated antenna measurements 

    Beitrag zu einer Konferenz
    Böhm, Linus; Hehl, Markus; Waldschmidt, Christian (Universität Ulm, 2016)
    For meaningful pattern measurements of integrated antennas the devices, which are required during the measurement process, need to be optimized to influence the measurement results as little as possible. In this paper the ...

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