ETRI Journal

Electronics and Telecommunications Research Institute (한국전자통신연구원)
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Aperture-Miniaturized Antenna Loaded with Split Ring Resonator Array

  • Oh, Soon-Soo (Broadcasting & Telecommunications Convergence Research Laboratory, ETRI) ;
  • Park, Wook-Ki (Department of Electrical Engineering, Inha University) ;
  • Kang, Suk-Youb (Department of Radio Sciences and Engineering, Korea Maritime University) ;
  • Park, Hyo-Dal (Department of Electrical Engineering, Inha University)
  • Received : 2009.01.12
  • Accepted : 2009.04.13
  • Published : 2009.06.30
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Abstract

In this letter, a novel antenna with a miniaturized aperture is proposed. The substrate including a split-ring resonator array is inserted into a size-reduced open-ended waveguide. For a low return loss and high radiation efficiency, the ring arrangement is optimized, and a stepped transition using H-plane discontinuity is proposed. The proposed antenna achieves a 70% aperture reduction compared to a conventional standard waveguide antenna of WR-187 (47.6 mm${\times}$22.2 mm). The return loss drops significantly at three frequencies, and a reasonable gain is achieved. The aperture-miniaturized antenna can be used in many antenna applications such as near-field measurement.

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References

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