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      Electrically small split ring resonator antennas

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      Author
      Alici, K. B.
      Özbay, Ekmel
      Date
      2007
      Source Title
      Journal of Applied Physics
      Print ISSN
      0021-8979
      Electronic ISSN
      1089-7550
      Publisher
      AIP Publishing LLC
      Volume
      101
      Issue
      8
      Pages
      083104 (1-4)
      Language
      English
      Type
      Article
      Item Usage Stats
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      Abstract
      We studied electrically small resonant antennas composed of split ring resonators (SRR) and monopoles. The antennas considered have the same ring radius, but slightly different geometry. The resonance frequency depends on the geometry of the SRRs. Two SRR antennas are designed. The first one, which operates at 3.62 GHz, is demonstrated theoretically and experimentally. The size of this antenna is 0.095 λ0 ×0.100 λ0 and is low profile at the other dimension. The gain and directivity of the antenna was 2.38 and 5.46, respectively. The corresponding efficiency was 43.6%. The estimated radiation Q (rad Q=23.03) was much larger than the minimum radiation Q (min Q=1.78). The second one is a rather small SRR antenna in which the capacitance between the rings is increased. The size is reduced to 0.074 λ0 ×0.079 λ0. This structure is called serrated SRR (SSRR). Both antennas have similar far-field patterns but the efficiency of the SSRR antenna is less.
      Permalink
      http://hdl.handle.net/11693/27107
      Published Version (Please cite this version)
      https://doi.org/10.1063/1.2722232
      Collections
      • Department of Electrical and Electronics Engineering 3524
      • Department of Physics 2299
      • Institute of Materials Science and Nanotechnology (UNAM) 1775
      • Nanotechnology Research Center (NANOTAM) 1006
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