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

The Korean Institute of Electromagnetic Engineering and Science (한국전자파학회)
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Effect of PCB Switching Noise on Radiated Emission from Enclosure Aperture

PCB에 인가된 스위칭 잡음이 함체 개구 방사에 미치는 영향

  • Jang, Hyoung-Seok (Department of Radio Science & Engineering, Chungnam National University) ;
  • Lee, Soong-Keun (Department of Radio Science & Engineering, Chungnam National University) ;
  • Kim, Eun-Ha (Korea Automotive Technology Institute) ;
  • Ryu, Seung-Real (Korea Automotive Technology Institute) ;
  • Lee, Jae-Hyun (Department of Radio Science & Engineering, Chungnam National University) ;
  • Park, Dong-Chul (Department of Radio Science & Engineering, Chungnam National University)
  • Published : 2011.01.31
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Abstract

This paper investigates the radiated emission from the enclosure aperture, when the enclosure contains a 4-layer PCB and the PCB is driven by a pulse train additive with the switching noise from an active device. Radiated emission characteristics with and without switch noise cases, respectively, are analyzed by changing the PCB location and the slot direction. The equivalent circuit of a DC-DC converter is used to simulate the switching noise of active device. Also, MWS simulation results are directly connected to the ADS simulator as a 2-port block. The simulated results are compared with the measured ones.

본 논문은 능동 소자의 스위칭 잡음이 함체 내부에 위치한 PCB에 인가될 때, 함체의 개구 방사에 미치는 영향을 분석한 연구이다. 이상적인 주기 펄스 입력 신호가 PCB에 인가된 경우의 개구 방사와 스위칭 잡음을 포함한 주기 입력 신호가 인가된 경우의 개구 방사를 비교하였다. DC-DC 컨버터의 등가회로를 이용해 능동 소자의 스위칭 잡음을 구현하였으며, 방사 전계 시뮬레이션을 위해 회로 시뮬레이터와 전자기장 시뮬레이터를 연동시켜 해석을 수행하였다. 또한, 측정 결과와 시뮬레이션 결과를 비교하였다.

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References

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