EMC’04/Sendai ELECTROMAGNETIC EMISSION FROM EDGE PLACED DIFFERENTIAL TRACES ON PRINTED CIRCUIT BOARD

نویسندگان

  • Fengchao Xiao
  • Kimitoshi Murano
  • Majid Tayarani
  • Yoshio Kami
چکیده

Edge placement of a differential pair on the printed circuit board causes balance disruption, and resulting in electromagnetic (EM) emission. In this work, the emission from edge placed differential traces is numerically simulated and also measured. The simulation is based on the FDTD method. The field distribution is accurately snapped in the simulation and the emission characteristics are revealed. In the measurements, both the electric and magnetic fields are measured for several geometries. Finally, the common-mode inductance of edge placed differential pair is derived and the EM emission is further investigated.

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تاریخ انتشار 2004