Satellite antenna measurement at 322 GHz using a computer-generated hologram as the focusing element

Juha Ala-Laurinaho, Janne Häkli, Tomi Koskinen, Anne Lönnqvist, Juha Mallat, Antti V. Räisänen, Sylvain Ranvier, Jussi Säily, Jussi Tuovinen, Ville Viikari

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

    Abstract

    Computer-generated holograms can be applied in space terahertz technology; they are particularly suitable as focusing elements in compact test ranges, for example, in testing of high-gain antennas and measuring radar cross section (RCS) of scaled models. Radio holograms have also been demonstrated in other millimeter- and submillimeter-wave beam-shaping applications, such as the creation of non-diffracting mm-wave Bessel beams, mm-wave vortices, and custom-designed beam patterns. During summer 2003 we built a temporary measuring facility at the High Voltage Institute of the Helsinki University of Technology to test the ADMIRALS antenna built by EADS Astrium. The measurement results obtained at 322 GHz are so promising that we are currently proposing a hologram CATR test for the Planck telescope at 500 GHz.
    Original languageEnglish
    Title of host publicationProceedings of the 15th International Symposium on Space THz Technology
    EditorsGopal Narayanan
    Pages414-417
    Publication statusPublished - 2004
    MoE publication typeNot Eligible
    Event15th International Symposium on Space Terahertz Technology, ISSTT 2004 - Northampton, United States
    Duration: 27 Apr 200429 Apr 2004

    Conference

    Conference15th International Symposium on Space Terahertz Technology, ISSTT 2004
    CountryUnited States
    CityNorthampton
    Period27/04/0429/04/04

    Keywords

    • antenna measurement
    • satellite anatennas
    • hologram
    • submillimeter waves

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  • Cite this

    Ala-Laurinaho, J., Häkli, J., Koskinen, T., Lönnqvist, A., Mallat, J., Räisänen, A. V., Ranvier, S., Säily, J., Tuovinen, J., & Viikari, V. (2004). Satellite antenna measurement at 322 GHz using a computer-generated hologram as the focusing element. In G. Narayanan (Ed.), Proceedings of the 15th International Symposium on Space THz Technology (pp. 414-417) https://www.nrao.edu/meetings/isstt/papers/2004/2004414417.pdf