Resonant meta-surface superstrate for single and multifrequency dipole antenna arrays
journal contributionposted on 2012-03-02, 11:49 authored by Elena Saenz, Ramon Gonzalo, Inigo Ederra, J. C. Vardaxoglou, Peter de Maagt
The design of a multifrequency dipole antenna array based on a resonant meta-surface superstrate is proposed. The behavior of a single element that is closely placed to a meta-surface is experimentally investigated. The proposed meta-surface is based on resonating unit cells formed by capacitively loaded strips and split ring resonators. By tuning a dipole antenna to the pass band of the meta-surface, the physical area is effectively illuminated enhancing the radiation performance. The gain, radiation efficiency and effective area values of the whole configuration are compared to the ones obtained with a single dipole without superstrate. Radiation efficiency values for the proposed configuration of more than 80% and gain values of more than 4.5 1 dB are obtained. Based on this configuration, simulated results of a multifrequency antenna array are presented. Distinctive features of this configuration are high isolation between elements (20 dB for a distance of lambda0/4), and low back radiation.
This work was supported by the METAMORPHOSE NoE funded by the EU under Contract NMP3-CT-2004-50252 and the Spanish Government under project TEC2006-13248-C04-03/TCM.
- Mechanical, Electrical and Manufacturing Engineering
CitationSAENZ, E. ... et al., 2008. Resonant meta-surface superstrate for single and multifrequency dipole antenna arrays. IEEE Transactions on Antennas and Propagation, 56 (4), pp. 951 - 960
Publisher© Institute of Electrical and Electronics Engineers (IEEE)
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NotesThis article was published in the journal, IEEE Transactions on Antennas and Propagation [© IEEE], and is available at: http://dx.doi.org/10.1109/TAP.2008.919212. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.