Near-field measurements of a millimeter-wave reflectarray at 120 GHz

S. Mäkelä, A. Tamminen, J. Ala-Laurinaho, A.V. Räisänen, Päivi Koivisto, Jussi Säily, Janne Häkli, Pekka Rantakari, Reijo Tuovinen, Arttu Luukanen

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

    Abstract

    In this paper, we describe the near-field measurements of the surface of a 120 GHz reflectarray. The reconfigurable offset-fed reflectarray under development consist of approximately 3700 coplanar patch antenna elements which are individually controlled by 4-state micro-electro-mechanical (MEMS) phase shifters. Measurements of a static reflectarray preceding the MEMS-controlled one are done in order to characterize the behavior of individual antenna elements of the reflectarray. Measurement setup, probe selection and the effect of the directional coupler are described. Amplitude and phase patterns of the reflectarray are shown. Also the main characteristics of the static reflectarray under test are presented.
    Original languageEnglish
    Title of host publicationProceedings
    Subtitle of host publication9th European Radar Conference, EuRAD 2012
    PublisherIEEE Institute of Electrical and Electronic Engineers
    Pages481-484
    ISBN (Print)978-1-4673-2471-7
    Publication statusPublished - 2012
    MoE publication typeA4 Article in a conference publication
    Event9th European Radar Conference, EuRAD 2012 - Held as Part of European Microwave Week, EuMW 2012 - Amsterdam, Netherlands
    Duration: 31 Oct 20122 Nov 2012

    Conference

    Conference9th European Radar Conference, EuRAD 2012 - Held as Part of European Microwave Week, EuMW 2012
    Abbreviated titleEuRAD 2012
    CountryNetherlands
    CityAmsterdam
    Period31/10/122/11/12

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    Keywords

    • antenna measurements
    • millimeter-Wave
    • near-field-probe measurements
    • feflectarray

    Cite this

    Mäkelä, S., Tamminen, A., Ala-Laurinaho, J., Räisänen, A. V., Koivisto, P., Säily, J., Häkli, J., Rantakari, P., Tuovinen, R., & Luukanen, A. (2012). Near-field measurements of a millimeter-wave reflectarray at 120 GHz. In Proceedings: 9th European Radar Conference, EuRAD 2012 (pp. 481-484). IEEE Institute of Electrical and Electronic Engineers . https://ieeexplore.ieee.org/document/6450741