한국군사과학기술학회지 (Journal of the Korea Institute of Military Science and Technology)

  • 제17권1호
  • /
  • Pages.57-63
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  • 2014
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  • 1598-9127(pISSN)
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  • 2636-0640(eISSN)
한국군사과학기술학회 (The Korea Institute of Military Science and Technology)
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독립적인 이중 공진 모드 합성을 이용한 광대역 SDR 무전기 안테나 설계

A Wide Band Antenna Design using the Synthesis of Independent Dual Resonance Modes for Manpack SDR(Software Defined Radio)

  • 유병길 (삼성탈레스 통신시스템그룹) ;
  • 동문호 (국방과학연구소 제2기술연구본부) ;
  • 조지행 (국방과학연구소 제2기술연구본부) ;
  • 한성우 (국방과학연구소 제2기술연구본부)
  • Yu, Byunggil (Communication System Group, Samsung Thales) ;
  • Dong, Moo-Ho (The 2nd Research and Development Institute, Agency for Defense Development) ;
  • Cho, Ji-Haeng (The 2nd Research and Development Institute, Agency for Defense Development) ;
  • Han, Sung-Woo (The 2nd Research and Development Institute, Agency for Defense Development)
  • 투고 : 2013.11.07
  • 심사 : 2014.01.17
  • 발행 : 2014.02.05
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초록

In this paper, we have proposed a wide band antenna for manpack SDR(Software Defined Radio). The proposed antenna consists of feeding post, flexible gooseneck and two radiating elements composed of a upper and lower radiators. The upper radiator has a longer electrical length than the lower radiator in order to operate in the lower frequency. Also, the resonant frequency and impedance characteristics of the antenna can be adjusted independently for two radiators. Therefore, the proposed antenna can be achieved wide impedance bandwidth by the combination of two independent resonance modes. To analyze the characteristics of the antenna in the design process is employed the equivalent circuit theory and EM(Electro-Magnetic) simulation. The measurement results show that the proposed antenna have the sufficient wide bandwidth, above -3.4dBi of the gain and fairly good radiation pattern over the wide bandwidth.

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참고문헌

  1. R. W. P. King, The Theory of Linear Antenna, Harvard University Press, Cambridge, MA, 1956.
  2. Y. Li, Z. Zhang, W. Chen, Z. Feng, "A Switchable Matching Circuit for Compact Wideband Antenna Designs," IEEE Trans. Antennas Propag., Vol. 58, pp. 3450-3457, 2010. 11. https://doi.org/10.1109/TAP.2010.2071345
  3. T. R. O'Meara, R. L. Sydnor, "A Very-Wide-Band Balun Transformer for VHF and UHF," Proc. IRE, Vol. 46, pp. 1848-1860, 1958. 11
  4. H. Mosallaei, K, Sarabandi, "Magneto-dielectrics in Electromagnetics: Comcept and Applications," IEEE Trans. Antennas Propag., Vol. 52, pp. 1558-1567, 2004. 6. https://doi.org/10.1109/TAP.2004.829413