Computer-generated holograms (diffractive elements) can be used for shaping millimeter-wave beams, e.g., for producing a plane wave in a compact space. An amplitude hologram has earlier been demonstrated to be able to form arbitrary beams at 310 GHz and has proven to be a feasible alternative as a focusing element in a compact antenna test range (CATR) at mm-wavelengths. It was used successfully for Odin satellite antenna tests at 119 GHz. In a recent study we have designed and constructed a compact antenna test range for 322 GHz and measured the ADMIRALS representative test object, which is a 1.5-meter offset paraboloid antenna.


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    Title :

    Computer-generated hologram and its use for submm-wave antenna measurement


    Contributors:
    Raisanen, A.V. (author) / Ala-Laurinaho, J. (author) / Koskinen, T. (author) / Lonnqvist, A. (author) / Saily, J. (author) / Hakli, J. (author) / Mallat, J. (author) / Viikari, V. (author) / Ranvier, S. (author) / Tuovinen, J. (author)


    Publication date :

    2004-01-01


    Size :

    590915 byte





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English




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