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Design of Wide-band Sleeve Monopole Antenna that 4 PCS of Post Type Parasitic Element is Added

4개의 Post 형태 기생소자를 추가한 광대역 슬리브 모노폴 안테나 설계

  • 이상우 (목포해양대학교 해양전자통신공학부 (주)한국안테나 중앙연구소) ;
  • 김갑기 (목포해양대학교 해양전자통신공학부)
  • Published : 2007.01.31

Abstract

In this paper, we have designed and fabricated a small size wide-band monopole antenna which can integrate the frequency of previous business mobile communication system by adding 4 PCS of post type parasitic element on top-loaded sleeve monopole antenna. We have observed the properties of return loss upon a parameter change of element, and we also examined radiation properties in the band of PCS, W-CDMA, WiBro, W-LAN and S-DMB in order to make sure the suggested antenna's wide-band properties. We have found that the proposed antenna has omni-direction in horizontal plane and figure eight-direction in vertical plane, and we could have good return loss($Return\;loss{\leq}-10\;dB$) and $1.14{\sim}3.66\;dBi$ gain in $1.67{\sim}3.55\;GHz$ of frequency range($B/W{\fallingdotsep}72%$).

본 논문은 Top-loading한 슬리브 모노폴에 4개의 Post 형태 기생소자를 추가함으로써, 기존의 상용 이동통신 시스템의 주파수를 하나로 통합 할 수 있는 소형이면서, 광대역 특성을 갖는 모노폴 안테나를 설계 및 제작하였다. 각 소자의 Parameter 변화에 따른 반사손실 특성을 관찰하였고, 제안된 안테나의 광대역 특성을 확인하기 위하여 PCS, W-CDMA, WiBro, W-LAN, S-DMB 대역에서의 복사 특성을 살펴보았다. 제안된 안테나는 수평면내 무지향성, 수직면내 8자형의 지향성을 가지며 $1.67{\sim}3.55\;GHz$ 주파수 대역($B/W{\fallingdotsep}72%$) 에서 Return loss$Return\;loss{\leq}-10\;dB$의 양호한 반사손실과 $1.14{\sim}3.66\;dBi$의 이득을 얻을 수 있었다.

Keywords

References

  1. J. Y. Jan and T. M. Kuo, 'CPW-fed wideband planar monopole antenna for operations in DCS, PCS, 3G, and Bluetooth bands', Electronics Letters, Vol. 41, No. 18, pp. 991-993, September 2005 https://doi.org/10.1049/el:20052494
  2. Sang-Woo Lee, Hyun-Chun Go, and Yong-Woong Jang, ' A low profile wideband top-loading monopole antenna with a ring-shaped plate', Microwave and Optical Technology Letters, Vol. 48, No.8, pp. 1458-1460, August 2006 https://doi.org/10.1002/mop.21731
  3. Yong-Woong Jang, Hyun-Chul Go, and Sang-Woo Lee, 'A low profile, top-loaded monopole antenna with four small posts', Microwave Journal, Vol. 49, No.4, pp. 116-122, April 2006
  4. K. Fujimoto and J. R. James, Mobile Antenna Systems Handbook, Artech House, Boston, pp. 65-70,1994
  5. Constantine A. Balanis, Antenna Theory: Analysis and Design, John Willy and Sons, Inc. pp.441-449, 1997
  6. Jung-Ick Moon, Seong-Ook Park, and Ke-Young Park, 'Broadband sleeve monopole type antenna for dual-band PCS/IMT -2000' , Electronics Letters, Vol. 36, No. 22, pp. 1829-1830, October 2000 https://doi.org/10.1049/el:20001303
  7. T. L. Simpson, 'The disk loaded monopole antenna', IEEE Trans. Antennas Propagat., Vol. AP-2, No.2, pp. 542-550,2004
  8. K. Chung, T. Yun and J. Choi, 'Wideband CPW-fed monopole antenna with parasitic elements and slots', Electronics Letters, Vol. 40, No. 17, pp. 1038-1040, August 2004 https://doi.org/10.1049/el:20045549