A Reduction method of Undesired Radiation from the Split Ground Structures (SGS)

  • Kim, Gi-rae (Computer Engineering Department, University of Silla)
  • Published : 2003.03.01


The split ground structure for microstrip structure can be used to protect analog/RF signal from SSN interference of digital circuits on PCB with common ground. However, the split ground structure gives rise to undesired emissions that may interfere with nearby circuitry due to the ground discontinuity. In this paper, we have proposed the modified structure, Dumbbell shaped SGS and the method to reduce the radiation by adding the lumped resistor on the proposed Dumbbell shaped SGS.


SGS (Split Ground Structure);SSN;EMC


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