Sub-mm antenna tests in a hologram based CATR

Janne Häkli (Corresponding Author), Juha Ala-Laurinaho, Tomi Koskinen, Jerzy Lemanczyk, Anne Lönn1vist, Juha Mallat, Antti V. Räisänen, Jussi Säily, Jussi Tuovinen, Jussi Viikari

    Research output: Contribution to journalArticleScientificpeer-review

    1 Citation (Scopus)


    Computer-generated holograms can be used as collimating elements in compact antenna test ranges (CATRs). Recently, a 1.5 m parabolic antenna, the ADMIRALS representative test object (RTO), was tested at 322 GHz using a hologram-based CATR that was built specifically for these tests. The construction of the compact range is discussed in this paper. A 3 m hologram was used to realize a 1.8 m diameter quiet zone. The measured quiet-zone field amplitude and phase and the measured H-plane radiation pattern cut of the representative test object are presented. The measured -3 dB beam width of the antenna was 0.050º in the H plane.
    Original languageEnglish
    Pages (from-to)237 - 240
    Number of pages4
    JournalIEEE Antennas and Propagation Magazine
    Issue number5
    Publication statusPublished - 2005
    MoE publication typeA1 Journal article-refereed


    • antenna measurement
    • satellite antennas
    • hologram
    • submillimeter waves


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