한국항해항만학회지 (Journal of Navigation and Port Research)

  • 제30권2호
  • /
  • Pages.161-166
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  • 2006
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  • 1598-5725(pISSN)
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  • 2093-8470(eISSN)
한국항해항만학회 (Korean Institute of Navigation and Port Research)
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A Study on Design and Fabrication of Complex Type EM Wave Absorber with Super Wide-band Characteristics

  • Kim Dae-Hun (Department of Radio Science & Engineering, Korea Maritime University) ;
  • Kim Dong-Il (Department of Radio Science & Engineering, Korea Maritime University) ;
  • Choi Chang-Mook (Department of Radio Science & Engineering, Korea Maritime University) ;
  • Son Jun-Young (Department of Radio Science & Engineering, Korea Maritime University)
  • 발행 : 2006.03.01
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초록

In order to construct an Anechoic Chamber satisfying international standards for EMI testing, it has been recognized that the absorption characteristics of the EM wave absorber must be higher than 20 dB over the frequency band from 30 MHz to 18 GHz. In this paper, an EM wave absorber with super wide-band frequency characteristics was proposed and designed in order to satisfy the above requirements by using the Equivalent Material Constant Method(EMCM) and Finite Difference Time Domain(FDTD). The proposed absorber is to attach a pyramidal absorber onto a hemisphere-type absorber on a cutting cone-shaped ferrite. As a result, the proposed absorber has absorption characteristics higher than 20 dB over the frequency band from 30 MHz to more than 20 GHz.

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참고문헌

  1. CISPR11. (1997), 'ISM raclio frequency equipment electromagnetic clisturbance characteristics limits & methods of measurement', IEC, pp.12-15
  2. Christoper L. Holloway, Ronald R. Delyser, Robert F. German, Paul Mckenna, and Motohisa Kanda. (1997), 'Comparison of Electromagnetic Absorber Used in Anechoic and Semi-Anechoic Chamber for Emissions and Immunity Testing of Digital Device', IEEE Trans. on Electromagnetic Compatibility, vol. 39, no. 1, pp. 33-47 https://doi.org/10.1109/15.554693
  3. Dennis M. Sullivan. (2000) 'Electromagnetic Simulation Using the FDTD method', IEEE Press series on RF and Microwave Technology
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  5. Kim, D. I., Michiharu Takahashi, Hiroki Anzai, Sang Y. J..(1996), 'Electromagnetic wave absorber with wideband frequency characteristics using exponentially tapered ferrite', IEEE Trans. On electromagnetic compatibility, vol. 38, no. 2, pp. 173-177 https://doi.org/10.1109/15.494620
  6. Naito, Y. et al. (1993), 'Characteristics of grid ferrite electromagnetic wave absorber', IEICE of Japan, vol. J76-B-II, No. 11, pp. 898-905
  7. Son, J. Y., Kim, D. I.,(2003), 'A study on absorption characteristics of Hemisphere type on cutting cone shaped absorber for obliquely incident EM waves', 2003 Asia-Pacific Microwave Conference, Sheraton Walkerhill Hotel, Seoul, Korea, Vol. 01, pp. 53-56

피인용 문헌

  1. Design and Fabrication of the EM Wave Absorber with Excellent Characteristics for ETC System vol.12, pp.1, 2012, https://doi.org/10.5515/JKIEES.2012.12.1.20
  2. Development of EM Wave Absorber for Hi-pass System Using Amorphous Metal Powder vol.35, pp.9, 2011, https://doi.org/10.5394/KINPR.2011.35.9.717
  3. Current Technologies and Prospects of Electromagnetic Wave Absorbers vol.13, pp.1, 2015, https://doi.org/10.6109/jicce.2015.13.1.036
  4. Development of the EM wave Absorber for Improving the Performance of Hi-Pass System in ITS vol.18, pp.7, 2014, https://doi.org/10.6109/jkiice.2014.18.7.1505