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

Publication: Research - peer-reviewJournal article – Annual report year: 2009

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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
Publication date2009
Volume57
Issue2
Pages383-394
ISSN0018-926X
DOIs
StatePublished
CitationsWeb of Science® Times Cited: 11

Keywords

  • Dipole antenna array, Mutual coupling, Meta-surface
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