Proceedings of the Korea Electromagnetic Engineering Society Conference (한국전자파학회:학술대회논문집)

The Korean Institute of Electromagnetic Engineering and Science (한국전자파학회)
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Measurements and Analysis of Electromagnetic Shielding Effectiveness of PDP TV Screen Filters

PDP TV Screen Filter의 Shielding Effectiveness 측정 및 분석

  • Park, Gyu-Bok (Division of Electrical and Computer Engineering, Pohang University of Science and Technology) ;
  • Kim, Yoon-Jung (Division of Electrical and Computer Engineering, Pohang University of Science and Technology) ;
  • Kim, Young-Soo (Division of Electrical and Computer Engineering, Pohang University of Science and Technology)
  • 박규복 (포항공과대학교 전자컴퓨터공학부) ;
  • 김윤정 (포항공과대학교 전자컴퓨터공학부) ;
  • 김영수 (포항공과대학교 전자컴퓨터공학부)
  • Published : 2003.11.15
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Abstract

Screen filter of PDP TV plays an important role in satisfying the EMI/EMC specifications. Two types of filters, the mesh type and the sputter type, are used in PDP TVs, and this paper presents measurement results of the shielding effectiveness (SE) in the frequency range from 50MHz to 1GHz. Two methods were used for the measurement, one using network analyzer (NA) in an open area test site(OATS), and the other using the screen room. The overall conclusion is that the shielding effectiveness of the screen filter is related to the surface resistance of the screen filter. The mesh type screen filters are superior to the sputter types in the shielding effectiveness, which is varying with the frequency.

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