Testing of satellite antennas at high millimeter and submillimeter wavelengths has some specific problems not encountered at lower frequencies. The atmospheric attenuation due to water and oxygen molecule resonances at certain frequency bands can be substantial. Therefore, conventional far-field test methods for electrically large antennas are ruled out by the required far-field distance of kilometers or even tens of kilometers. However, the compact antenna test range (CATR) makes such far-field tests possible within an indoor chamber having a controlled atmosphere. The application and ongoing development of a CATR based on a hologram as the focusing element are outlined.


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    Title :

    Measuring satellite antennas with a compact hologram test range


    Contributors:
    Saily, J. (author) / Ala-Laurinaho, J. (author) / Hakli, J. (author) / Koskinen, T. (author) / Lonnqvist, A. (author) / Raisanen, A.V. (author) / Tuovineni, J. (author)


    Publication date :

    2002-05-01


    Size :

    891260 byte




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




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