반원 확장을 이용한 초광대역 슬롯 안테나 설계

The Design of the Ultra-Wideband Slot Antenna by Using a Semi-Circular Extension

  • 이정남 (국립 한밭대학교 정보통신전문대학원) ;
  • 이효경 (국립 한밭대학교 정보통신전문대학원) ;
  • 장화열 (국립 한밭대학교 정보통신전문대학원) ;
  • 박종권 (국립 한밭대학교 정보통신컴퓨터공학부 전파공학전공)
  • Lee Jung-Nam (Graduated School of Information & Communications, Hanbat National University) ;
  • Lee Hyo-Kyoung (Graduated School of Information & Communications, Hanbat National University) ;
  • Jang Hwa-Yeol (Graduated School of Information & Communications, Hanbat National University) ;
  • Park Jong-Kweon (Department of Radio Wave Engineering, Hanbat National University)
  • 발행 : 2005.09.01

초록

본 논문에서는 반원 확장을 이용한 Ultra-Wideband(UWB)슬롯 놋치 안테나를 제안하였다. 제안된 안테나는 UWB 통신 주파수 대역인 3.1${\~}$10.6 GHz 대역을 만족했으며, IEEE 802.11a 주파수 대역인 5.15${\~}$5.825 GHz는 안테나 패치면에 형성한 $\lambda$/4 길이의 슬롯에 의해 필터링 되었다. 안테나는 유전율이 4.4이며 두께가 0.8 mm인 FR-4로 제작하였으며, VSWR 특성을 측정하였다. 슬롯의 길이 변화에 따른 놋치 특성을 측정하였으며, 경로 손실과 그룹딜레이를 측정하였다. 제안된 안테나는 IEEE 802.11a 주파수 대역을 제외하고는 평탄한 이득 변화량(1.9 dBi)을 나타내었다.

In this paper, we have proposed a Ultra-Wideband slot notch antenna by using a semi-circular extension. The proposed antenna cover the entire UWB band(3.1${\~}$10.6 GHz) and notch out the IEEE 802.1la frequency band(5.15${\~}$5.825 GHz) by inserting a $\lambda$/4 length slot into the patch. A prototype antenna was fabricated on FR-4( ${\epsilon}_r$ =4.4, substrate thickness=0.8 mm) and measured for VSWR characteristics. The measured notched frequency variations versus frequency for different slot length. The path loss and group delay were measured. The proposed antenna also show a good gain flatness(1.9 dBi) except the IEEE 802.1la frequency band.

키워드

참고문헌

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