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수직 접지면을 가지는 4중 대역용 이중 스파이럴 라인 로디드 모노폴 안테나

A Dual-Sprial Line Loaded Monopole Antenna having a Vertical Groundplane for Quadband Applications

  • 김병철 (아주대학교 전자공학부) ;
  • ;
  • 추호성 (홍익대학교 전자전기공학부) ;
  • 박익모 (아주대학교 전자공학부)
  • Kim, Byoung-Chul (School of Electrical and Computer Engineering, Ajou University) ;
  • Nguyen, Truong Khang (School of Electrical and Computer Engineering, Ajou University) ;
  • Choo, Ho-Sung (School of Electronics and Electrical Engineering, Hongik University) ;
  • Park, Ik-Mo (School of Electrical and Computer Engineering, Ajou University)
  • 발행 : 2008.08.31

초록

본 논문에서는 수직 접지면을 가지는 4중 대역용 이중 스파이럴 라인 로디드 모노폴 안테나를 제안한다. 안테나의 크기는 $38{\times}12{\times}7\;mm^3$이고, 접지면의 크기는 $40{\times}92\;mm^2$이다. 측정된 안테나의 대역폭은 $VSWR{\le}2$를 기준으로 첫 번째 대역과 두 번째 대역에서 각각 11.7 %와 24.8 %이며, Cellular($0.824{\sim}0.894\;GHz$), PCS($1.750{\sim}1.870\;GHz$), UMTS($1.920{\sim}2.170\;GHz$) 그리고 IMT-2000($1.885{\sim}2.200\;GHz$) 대역을 동시에 수용한다. 측정된 안테나의 최대 이득은 Cellular, PCS, UMTS, IMT-2000 대역의 중심 주파수에서 -0.99 dBi, 4.07 dBi, 2.72 dBi와 4.33 dBi이다.

In this paper, we propose a dual-spiral line loaded monopole antenna having a vertical ground plane for quadband applications. The antenna occupies a volume of $38{\times}12{\times}7\;mm^3$ with a $40{\times}92\;mm^2$ ground plane. The measured impedance bandwidths of the antenna based on $VSWR{\le}2$ are approximately of 11.7 % and 24.8 % in the first and second frequency band, respectively. The operating frequency can simultaneously cover Cellular($0.824{\sim}0.894\;GHz$), PCS($1.750{\sim}1.870\;MHz$), UMTS($1.920{\sim}2.170\;MHz$), and IMT-2000($1.885{\sim}2.200\;GHz$) bands. The maximum gains of the antenna are -0.99 dBi, 4.07 dBi, 2.72 dBi, and 4.33 dBi at the center frequencies of the Cellular, PCS, UMTS, and IMT-2000 bands, respectively. Good radiation patterns are experimentally obtained.

키워드

참고문헌

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