Investigations on Accurate Analysis of Microstrip Reflectarrays

Min Zhou, S. B. Sørensen, Oleksiy S. Kim, Sergey Pivnenko, G. Toso

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    Abstract

    An investigation on accurate analysis of microstrip reflectarrays is presented. Sources of error in reflectarray analysis are examined and solutions to these issues are proposed. The focus is on two sources of error, namely the determination of the equivalent currents to calculate the radiation pattern, and the inaccurate mutual coupling between array elements due to the lack of periodicity. To serve as reference, two offset reflectarray antennas have been designed, manufactured and measured at the DTUESA Spherical Near-Field Antenna Test Facility. Comparisons of simulated and measured data are presented to verify and demonstrate the improved results using the proposed solutions.
    Original languageEnglish
    Title of host publicationProceedings of the 33rd ESA Antenna Workshop
    Publication date2011
    Publication statusPublished - 2011
    Event33rd ESA Antenna Workshop on Challenges for Space Antenna Systems - Noordwijk, Netherlands
    Duration: 18 Oct 201121 Oct 2011
    Conference number: 33
    http://www.congrex.nl/11c07/

    Workshop

    Workshop33rd ESA Antenna Workshop on Challenges for Space Antenna Systems
    Number33
    Country/TerritoryNetherlands
    CityNoordwijk
    Period18/10/201121/10/2011
    Internet address

    Keywords

    • Antenna radiation pattern
    • Measurements
    • Horn antennas
    • Microstrip reflectarrays
    • Method of moments (MoM)
    • Accurate antenna analysis

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