Coupling reduction between dipole antenna elements by using a planar meta-surface

Elena Saenz, Inigo Ederra, Ramon Gonzalo, Sergey Pivnenko, Olav Breinbjerg, Peter de Maagt

    Research output: Contribution to journalJournal articleResearchpeer-review


    The mutual coupling between dipole antenna array elements using a planar meta-surface as superstrate is experimentally investigated. The meta-surface is based on grids of short metal strips and continuous wires. A comparison between the mutual coupling when the dipoles are radiating in free space and in presence of the superstrate is presented. On average, between 3 to 14 dB reduction of the mutual coupling is achieved when the superstrate is used. The effect of the mutual coupling on the radiation performance of the array is studied by spherical near-field measurements of the radiation pattern when one driven dipole is fed and the others are matched with 50 Omega loads. The back-projected field on the aperture and on the E-plane is shown.
    Original languageEnglish
    JournalIEEE Transactions on Antennas and Propagation
    Issue number2
    Pages (from-to)383-394
    Publication statusPublished - 2009


    • Dipole antenna array
    • Mutual coupling
    • Meta-surface


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