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A Method to Suppress the Spurious Radiation due to the Current Pulse on the Cable using the Frequency Selective Metamaterial Structure

  • 강승택 (인천대학교 정보통신공학과) ;
  • 양인규 (인천대학교 정보통신공학과) ;
  • 김형석 (중앙대학교 전자전기공학부)
  • Kahng, Sungtek (Information and Telecommunication Engineering, University of Incheon) ;
  • Yang, Inkyu (Information and Telecommunication Engineering, University of Incheon) ;
  • Kim, Hyeong-Seok (School of Electrical and Electronics Engineering, College of Engineering, Chung-Ang University)
  • 투고 : 2013.02.21
  • 심사 : 2013.03.07
  • 발행 : 2013.04.01


The spurious electromagnetic radiation is generated due to the RF unbalanced current on a conductive cable connecting an electronic device to another. A metamaterial-based filtering geometry with frequency selectivity is suggested to reduce the radiation with a bandgap structure, where the right-handed inductance and capacitance stem from the transmission-like configuration between the cable and the metal protrusion, and the left-handed components come from the narrow cavities. The effect of the structure on the unbalanced current pulse and its spurious radiation is presented in the FDTD-method frame work.


  1. H. H. Park, and H. J. Eom, "Electromagnetic Penetration into Rectangular Cavity with Multiple Rectangular Apertures in a Conducting Plane IEEE Trans. Electromagn. Compat., vol. 42, no. 3, pp. 303 -307, Aug. 2000
  2. D. M. Hockanson J. L. Drewniak, T. H. Hubing, and T. P. Van Doren, "FDTD Modeling of Common Mode Radiation from Cables," IEEE Trans. Electromagn. Compat., vol. 38, no. 3, pp. 376-387, Aug., 1996
  3. S. A. Saario, "Analysis of Ferrite Beads for RF Isolation Straight Wire Conductors Common-Mode Radiation from Cables," Electron. Lett. vol. 33, no. 16, pp. 1359-1360, July 1997.
  4. C. R. Paul, Introduction to Electromagnetic Compatibility. New York: Wiley, 1991
  5. T. Kasuga, M. Tanaka and H. Inoue, "FDTD simulation and experimental study on line impedance and magnetic near field noise for a simple printed line model," IEICE Trans. Commun. vol. E83-B, no. 3, pp. 561-568, Mar. 2000
  6. A. Taflove, Computational Electrodynamics ; The Finite-Difference Time-Domain Method. Norwood, MA: Artech House, 1995
  7. J. P. Berenger, "Three-dimensional perfectly matched layer for the absorption of electromagnetic waves," J. Comput. Phys., vol. 127, pp. 363-379, 1996
  8. Sungtek Kahng, Hyeong-Seok Kim, "Study on the Metamaterial Design Methodology to Reduce the Size of the Bandpass Filter for the Smart Grid IED", The Korean Institute of Electrical Engineers, KIEE Journal(Korean), vol. 60, no. 12, pp. 2299-2304 , 2011.12
  9. Dajeong Eom, Sungtek Kahng, Segyoon Mok, Choongho Song, Chunsik Woo, Dohyun Park, "Design of a Compact Bandstop Filter-combined UHF-band CRLH Bandpass Filter to Suppress the Spurious in L-band", The Korean Institute of Electrical Engineers, KIEE Journal(Korean), vol. 61 no. 01, pp. 104-109 , 2012.01
  10. Dajeong Eom, Sungtek Kahng, Jeonghoon Park, "A Compact Feeding Structure for an Wide-band Array Antenna using a Microstrip Metamatreial UWB Power Divider", The Korean Institute of Electrical Engineers, KIEE Journal(Korean), vol. 61, no. 08, pp. 1159-1163 , 2012.08