An Accurate Technique for Calculation of Radiation From Printed Reflectarrays

Min Zhou, Stig B. Sorensen, Erik Jorgensen, Peter Meincke, Oleksiy S. Kim, Olav Breinbjerg

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    Abstract

    The accuracy of various techniques for calculating the radiation from printed reflectarrays is examined, and an improved technique based on the equivalent currents approach is proposed. The equivalent currents are found from a continuous plane wave spectrum calculated by use of the spectral dyadic Green's function. This ensures a correct relation between the equivalent electric and magnetic currents and thus allows an accurate calculation of the radiation over the entire far-field sphere. A comparison to DTU-ESA Facility measurements of a reference offset reflectarray designed and manufactured specifically for this purpose is presented to demonstrate the accuracy of the proposed technique.
    Original languageEnglish
    JournalI E E E Antennas and Wireless Propagation Letters
    Volume10
    Pages (from-to)1081-1084
    ISSN1536-1225
    DOIs
    Publication statusPublished - 2011

    Keywords

    • Antenna radiation patterns
    • Magnetic resonance imaging
    • Substrates
    • Antenna measurements
    • Current measurement
    • Arrays

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