Experimental Analysis of the Shielding Mechanism of Stainless Steel Woven Fabrics

Stainless Steel 직물에 대한 전자파 차폐기구의 실험적 해석

  • Huh You (School of Mechanical and Industrial System Engineering, Kyunghee University) ;
  • Kim Ihn Seok (School of Electronics and Information, Kyunghee University) ;
  • Paik Yeong Nam (School of Mechanical and Industrial System Engineering, Kyunghee University)
  • 허유 (경희대학교 기계 산업시스템 공학부) ;
  • 김인석 (경희대학교 전자정보학부) ;
  • 백영남 (경희대학교 기계 산업시스템 공학부)
  • Published : 2005.02.01

Abstract

Wide use of electrical and electronic devices in everyday life give rise to a dispute about the harmfulness of electromagnetic radiation on human body. Electromagnetic radiation also causes malfunctions of devices and interference of the signals transferred from one instrument to another. Therefore, electromagnetic shielding becomes a more important topic as more electronic devices and house hold apparatuses are supplied and used for enhancing the convenience of human life. This study attempts to show the experimental results on the electromagnetic shielding effectiveness of woven fabrics made of stainless steel fibers. We designed and constructed a measuring system, consisting of a network analyzer and a device that plays the serves as a sample holder and at the same time as a transmission medium of the incident electromagnetic wave. Experimental results show that the metal fabrics have a very good electromagnetic shielding effectiveness. The shielding effectiveness results from the reflection loss rather than the absorption loss, even though the material itself has a good absorption property. Thus, the shielding mechanism of metal woven fabrics is more influenced by structural parameters than by the electronic properties of the fiber material.

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References

  1. C. H. Hsu, J. D. Cohen, and R. F. Tietz, 'Polyaniline Spinning Solutions and Fibers', Synthetic Metals, 1993, 59(1), 37-41 https://doi.org/10.1016/0379-6779(93)91155-U
  2. H. Katagi, H. Kasai, S. Okada, H. Oikawa, H. Matsuda, and H. Nakanishi, 'Fabrication of Metal-coated Organic Microcrystals', Polymers for Advanced Technologies, 2000, 11, 778-782 https://doi.org/10.1002/1099-1581(200008/12)11:8/12<778::AID-PAT55>3.0.CO;2-P
  3. O. K. Kim, T. E. Tsai, T. H. Yoon, and L. S. Choi, 'Electrical Conductivity of Ladder-type Polymeric Transition-metal Complexes Derived from 2,5-diamino-l ,4-benzenedithiol', Synthetic Metals, 1993, 59(1), 59-70 https://doi.org/10.1016/0379-6779(93)91157-W
  4. C. Y Lee, D. E. Lee, J. Joo, M. S. Kim, J. Y Lee, S. H. Jeong, and S. W. Byun, 'Conductivity and EMI Shielding Efficiency of Polypyrrole and Metal Compounds Coated on (non)woven Fabrics', Synthetic Metals, 2001, 119, 429-430 https://doi.org/10.1016/S0379-6779(00)01280-7
  5. C. Y. Lee, D. E. Lee, C. K. Jeong, Y. K. Hong, J. H. Shim, J. Joo, M. S. Kim, J. Y. Lee, S. H. Jeong, S. W. Byun, D. S. Zang, and H. G. Yang, 'Electromagnetic Interference Shielding by Using Conductive Polypyrrole and Metal Compound Coated on Fabrics', Polymers for Advanced Technologies, 2002, 13, 577-583 https://doi.org/10.1002/pat.227
  6. Department of Defense (U.S.A.), 'MIL-STD-285 Military Standard Attenuation Measurements for Enclosures, Electromagnetic Shielding, for Electronic Test Purposes, Method of', June, 1956
  7. E. Hariy and M. Umano, 'Instruments for Measuring the Electromagnetic Shielding Effectiveness', 1984 IEEE International Symposium on Electromagnetic Compatibility, 2, Tokyo, Japan, 1984
  8. E. Hariya, M. Umano, N. Morinaga, and Y. Nagasawa, 'Experimantal Investigation on the Electromagnetic Shielding Effectiveness (in Japanese)', IECE Technical Report, MW85-68, 1985, pp.9-16
  9. A. Manara, 'Measurement of Material Shielding Effectiveness Using a Dual TEM Cell and Vector Network Analyzer', IEEE Trans, EMC, 1996, 38(3), 327-333
  10. R. J. Donald, 'White and Michael Mar야guian, Electromagnetic Shielding, A Handbook Series on Electromagnetic Interference and Compatibility', Interference Control Technologies, Inc., Gainesville, Vrrginia, 1988, Vol. 3