A study on the radiated emission from the DC power-bus for the PCB

PCB DC power-bus로부터의 전파방사에 관한 연구

  • Kahng, Sung-Tek (Dept. of Information and Telecommunication Eng., University of Incheon)
  • 강승택 (인천대학교 정보통신공학과)
  • Published : 2005.11.05


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.


Radiated fields;PCB power-bus;full-wave analysis