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      Experimental verification of metamaterial loaded small patch antennas

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      Author
      Alici, K. B.
      Caliskan, M. D.
      Özbay, Ekmel
      Bilotti, F.
      Toscano, A.
      Vegni, L.
      Date
      2013
      Source Title
      COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering
      Print ISSN
      0332-1649
      Publisher
      Emerald Group Publishing Limited
      Volume
      32
      Issue
      6
      Pages
      1834 - 1844
      Language
      English
      Type
      Article
      Item Usage Stats
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      125
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      Abstract
      Purpose - Metamaterial unit cells composed of deep subwavelength resonators brought up new aspects to the antenna miniaturization problem. The paper experimentally demonstrates a metamaterial-inspired miniaturization method for circular patch antennas. In the proposed layouts, the space between the patch and the ground plane is filled with a proper metamaterial composed of either multiple split-ring or spiral resonators (SRs). The authors have manufactured two different patch antennas, achieving an electrical size of ?/3.69 and ?/8.26, respectively. The paper aims to discuss these issues. Design/methodology/ approach - The operation of such a radiative component has been predicted by using a simple theoretical formulation based on the cavity model. The experimental characterization of the antenna has been performed by using a HP8510C vector network analyzer, standard horn antennas, automated rotary stages, coaxial cables with 50 O characteristic impedance and absorbers. Before the characterization measurements we performed a full two-port calibration. Findings - Electrically small circular patch antennas loaded with single layer metamaterials experimentally demonstrated to acceptable figures of merit for applications. The proposed miniaturization technique is potentially promising for antenna applications and the results presented in the paper constitute a relevant proof for the usefulness of the metamaterial concepts in antenna miniaturization problems. Originality/value - Rigorous experimental characterization of several meta material loaded antennas and proof of principle results were provided. Copyright © 2013 Emerald Group Publishing Limited. All rights reserved.
      Keywords
      Antenna
      Electricity
      Materials
      Metamaterials
      Permalink
      http://hdl.handle.net/11693/12580
      Published Version (Please cite this version)
      http://dx.doi.org/10.1108/COMPEL-10-2012-0276
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      • Department of Electrical and Electronics Engineering 3524
      • Department of Physics 2299
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