The Journal of Korean Institute of Electromagnetic Engineering and Science (한국전자파학회논문지)

The Korean Institute of Electromagnetic Engineering and Science (한국전자파학회)
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A Frequency Reconfigurable Slot Antenna with Bandwidth-Enhanced Characteristics

대역폭 확장 특성을 갖는 주파수 Reconfigurable 슬롯 안테나

  • Lee Woo-Sung (Department of Electrical & Electronic engineering, Yonsei University) ;
  • Kim Hyung-Rak (Department of Electrical & Electronic engineering, Yonsei University) ;
  • Yoon Young-Joong (Department of Electrical & Electronic engineering, Yonsei University)
  • 이우성 (연세대학교 전기전자공학과) ;
  • 김형락 (연세대학교 전기전자공학과) ;
  • 윤영중 (연세대학교 전기전자공학과)
  • Published : 2006.06.01
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Abstract

In this paper, a frequency reconfigurable slot antenna which has a bandwidth-enhanced characteristic is proposed. The proposed antenna consists of two parts; the wide slot and the narrow slot, to increase the bandwidth of the antenna and have the frequency reconfigurable characteristic. The wide slot has triangular shape and makes the bandwidth increased, and the narrow slot can mount PIN diodes. By changing on/off state of PIN diodes, the total length of the slot is changed. From this characteristic, the proposed antenna can finally control the center frequency and minimize variation of the impedance matching.

본 논문에서는 기존의 주파수 reconfigurable 안테나의 협대역 특성을 개선하기 위한 대역폭 확장 특성을 가지는 주파수 reconfigurable 슬롯 안테나가 제안되었다. 제안된 안테나는 주파수 reconfigurable 특성을 가지는 동시에 대역폭을 확장시키기 위하여 넓은 슬롯 및 좁은 슬롯 두 부분으로 구성되어 있다. 삼각형 구조의 넓은 슬롯은 제안된 안테나의 대역폭을 증가시키는 역할을 하며, 좁은 슬롯은 PIN diode를 장착하는 역할을 한다. 제안된 안테나는 PM diode의 동작 상태를 바꿈에 따라 슬롯의 총 길이를 변화시키며, 이로 인해 중심 주파수 조절과 임피던스 정합의 변화를 최소화시킨다.

Keywords

References

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