Now showing items 1-9 of 9

    • Accuracy evaluation for antenna measurements at mm-wave frequencies 

      Beitrag zu einer Konferenz
      Böhm, Linus; Bögelsack, Frank; Hitzler, Martin; Wiehler, Stefan; Waldschmidt, Christian (Universität Ulm, 2016)
      Measurements of integrated antennas are often cumbersome and erroneous. Inaccuracies of the measurement setup, unknown material parameters, and metal parts in the immediate surrounding of the antenna under test (AUT) cause ...
    • An automated millimeter-wave antenna measurement setup using a robotic arm 

      Beitrag zu einer Konferenz
      Böhm, Linus; Bögelsack, Franck; Hitzler, Martin; Waldschmidt, Christian (Universität Ulm, 2015)
      In order to measure antenna properties precisely at frequencies above 100 GHz, elaborate measurement techniques are required. This is especially challenging for integrated antennas, as probes require a steady, rigid ...
    • Enhancements in mm-wave antenna measurements: automatic alignment and achievable accuracy 

      Wissenschaftlicher Artikel
      Böhm, Linus; Bögelsack, Frank; Hitzler, Martin; Waldschmidt, Christian (Universität Ulm, 2017-10)
      Due to various error sources, accurate integrated antenna measurements can be difficult to achieve. This study analyses the accuracy of a measurement set-up for radiation pattern (RP), directivity and gain measurements. ...
    • 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 ...
    • Probe influence on integrated antenna measurements at frequencies above 100 GHz 

      Beitrag zu einer Konferenz
      Böhm, Linus; Hitzler, Martin; Roos, Fabian; Waldschmidt, Christian (Universität Ulm, 2016)
      When measuring integrated antennas the signal has to be fed to the antennas with wafer probes. Wafer probes are commonly used to contact integrated circuits for on-chip measurements. As integrated radar and communication ...
    • Reflection reduction through modal filtering for integrated antenna measurements above 100 GHz 

      Wissenschaftlicher Artikel
      Böhm, Linus; Förstner, Alexander; Hitzler, Martin; Waldschmidt, Christian (Universität Ulm, 2017)
      Feeding integrated antennas during a measurement requires special feeding structures. Due to the small antenna dimensions, these feeding structures are often much bigger than the antenna under test (AUT) itself and with ...
    • Robotically controlled directivity and gain measurements of integrated antennas at 280 GHz 

      Beitrag zu einer Konferenz
      Böhm, Linus; Pledl, Sebastian; Bögelsack, Frank; Hitzler, Martin; Waldschmidt, Christian (Universität Ulm, 2015-12-03)
      In this paper a detailed description of an automated mm-wave antenna measurement setup is given, and gain and directivity measurement results are shown for a standard gain horn antenna and an integrated antenna at 280 GHz. ...
    • 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 ...
    • The performance of modal filtering in passive and active integrated antenna measurements at 160 GHz 

      Beitrag zu einer Konferenz
      Böhm, Linus; Hitzler, Martin; Förstner, Alexander; Waldschmidt, Christian (Universität Ulm, 2017)
      The results of integrated antenna measurements are often severely distorted by reflections from the measurement environment. In order to contact and feed passive integrated antennas wafer probes have to be used. Wafer ...