The Transactions of The Korean Institute of Electrical Engineers (전기학회논문지)

The Korean Institute of Electrical Engineers (대한전기학회)
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A Compact Feeding Structure for an Wide-band Array Antenna using a Microstrip Metamatreial UWB Power Divider

메타재질구조의 UWB 전력 분배기를 이용한 광대역 배열 안테나를 위한 급전부 설계

  • 엄다정 (인천대학교 정보통신공학과) ;
  • 강승택 (인천대학교 정보통신공학과) ;
  • 박정훈 (인천대학교 정보통신공학과)
  • Received : 2012.04.28
  • Accepted : 2012.06.25
  • Published : 2012.08.01
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Abstract

In this paper, a new method is suggested to reduce the size of a wide-band array antenna. The power-divider for the feeding structure is made compact as ${\lambda}/8$ with the help of a novel Metamaterial UWB bandpass filter. This power divider is clearly different from others in that the proposed design uses microstrip structured Composite Right and Left-Handed (CRLH) filters, while others use two dielectric layers or long tapered transmission lines. In order to validate the proposed design method, the circuit and full-wave simulated results of the power divider with the Metamaterial UWB filters are compared to each other, and the Metamaterial properties of the structure are shown with the electric field at the ZOR and dispersion diagram. Furthermore, the antenna performance of the fabricated antenna with the power divider is measured and compared with the prediction. Also, the size reduction effect by the proposed scheme is addressed.

Keywords

References

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