An Equivalent Modeling Method for the Radiated Electromagnetic Interference of PCB Based on Near-field Scanning

Authors

  • Yin-Shuang Xiao School of Mechanical and Electrical Engineering University of Electronic Science and Technology of China, Chengdu 611731, China
  • Dan Ren Institute of Electronic Engineering China Academy of Engineering Physics, Mianyang 621900, China
  • Pei Xiao School of Mechanical and Electrical Engineering University of Electronic Science and Technology of China, Chengdu 611731, China
  • Ping-An Du School of Mechanical and Electrical Engineering University of Electronic Science and Technology of China, Chengdu 611731, China

Keywords:

Dipole array, electromagnetic interference, equivalent modeling, printed circuit board (PCB), nearfield scanning

Abstract

Since the structure complexity of a PCB makes its EMI modeling be very difficult or impossible, an equivalent modeling method to predict the electromagnetic radiation of a PCB is presented by means of a dipole array based on near-field scanning. Firstly, the equivalent modeling method is theoretically derived and its accuracy is validated by a commercial full-wave tool. Then, the equivalent model is applied to predict the electromagnetic coupling of different parts on a PCB and the electromagnetic leakage of a PCB in an enclosure with numerous small apertures. The results show that the proposed method has high efficiency and acceptable accuracy.

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References

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Published

2019-05-01

How to Cite

[1]
Yin-Shuang Xiao, Dan Ren, Pei Xiao, and Ping-An Du, “An Equivalent Modeling Method for the Radiated Electromagnetic Interference of PCB Based on Near-field Scanning”, ACES Journal, vol. 34, no. 05, pp. 784–791, May 2019.

Issue

2019: Vol 34 Iss 5

Section

Articles