The Journal of Korean Institute of Electromagnetic Engineering and Science (한국전자파학회논문지)

The Korean Institute of Electromagnetic Engineering and Science (한국전자파학회)
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A Study on the Radiated Emission from the DC Power-Bus for the PCB

PCB DC Power-Bus로부터의 전파 방사에 관한 연구

  • Kahng, Sung-Tek (Dept. of Information and Telecommunication Eng., University of Incheon)
  • 강승택 (인천대학교 정보통신공학과)
  • Published : 2006.02.01
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Abstract

The DC power-bus' resonance is frequently attributed to EMI sources in the PCBs. Subsequently, it will ruin the digital signal integrity within one system or between adjacent systems in the form of conducted or radiated emission. Hence, since it is of importance to examine the PCB's emission, this paper sheds a light on the radiated emission from the power-bus with regards to its resonance modes. A full-wave analysis method is used to calculate the impedance and radiated electric fields and is validated by physics and an EM analysis tool.

PCB에서의 전자파 간섭원으로 DC power-bus의 공진이 자주 지목된다. 이것은 결국, 전도성 또는 전파 방사의 형태로, 하나 또는 인접한 시스템에서 디지털 SI를 저하시키게 된다. 따라서 PCB의 방사 문제를 파악하는 것은 중요하므로, 본 논문은 DC power-bus 공진 모드에 대한 방사를 면밀히 살펴본다. 엄밀한 주파수 영역 해석법을 이용하여 임피던스와 방사 전계를 구하고, 이는 물리와 전자파 해석 모의시험에 의해 타당성이 검토된다.

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References

  1. S. Van den Berghe et al., 'Study of the ground bounce caused by power plane resonances', IEEE Trans. EMC, vol. 40, no. 2, pp. 111-119, May 1998
  2. V. Ricchiuti, 'Supply decoupling on fully populated high-speed digital PCBs', IEEE Trans. EMC, vol. 43, pp. 671-676, Nov. 2001
  3. J. Fan et al., 'DC power-bus modelling and design with an MPIE formulation and circuit extraction', IEEE Trans. EMC, vol. 43, no. 2, pp. 426-436, May 2001
  4. X. Ye et al., 'DC power-bus design using FDTD modeling with dispersive media and surface mount technology', IEEE Trans. EMC, vol. 43, no. 4, pp. 579-587, Nov. 2001
  5. J. Trinkle et al., 'Efficient impedance calculation of loaded power ground planes', in Proc. 15th Zurich Symp. EMC, Zurich, Switzerland, 18, pp. 285-290, Feb. 2003
  6. T. Okoshi, Planar Circuits for Microwaves and Lightwaves, Berlin, Germany: Springer-Verlag, 1985
  7. S. Kahng, 'Study on the effect of metal-wall loading on the DC power-bus', JKEES, vol. 5, no. 4, pp. 193-196, Dec. 2005
  8. A. Peterson et al., Computational Methods for Electromagnetics, OSP & IEEE, 1998