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A High-Resolution Antenna Diagnostics Technique for Spherical Nesr-Field Measurements

Cecilia Cappellin, Olav Breinbjerg, Aksel Frandsen

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

    Abstract

    A new diagnostics technique for spherical near-field antenna measurements, that can provide a high spatial resolution of the reconstructed aperture field, is presented. This technique is realized by transforming the spherical wave expansion (SWE) of the radiated field into the corresponding plane wave expansion (PWE), recovering a significant part of the invisible region of the plane wave spectrum. Through the inverse Fourier transform (IFT), the field on a plane outside as well as inside the antenna minimum sphere is reconstructed, with a resolution that exceeds the limit of one half a wavelength provided by the traditional IFT of the far-field.
    Original languageEnglish
    Title of host publication28th ESA Antenna Workshop on Space Antenna Systems and Technologies, ESTEC
    Publication date2005
    Pages899-906
    Publication statusPublished - 2005
    Event28th ESA Antenna Workshop on Space Antenna Systems and Technologies - ESTEC European space research and technology centre, Noordwijk, Netherlands
    Duration: 30 May 20053 Jun 2005
    Conference number: 28

    Conference

    Conference28th ESA Antenna Workshop on Space Antenna Systems and Technologies
    Number28
    LocationESTEC European space research and technology centre
    Country/TerritoryNetherlands
    CityNoordwijk
    Period30/05/200503/06/2005

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