Journal of electromagnetic engineering and science

The Korean Institute of Electromagnetic Engineering and Science (한국전자파학회)
권호 표지

EM Wave Absorbers with Au Coated Conductive Sheets

  • Song Jae-Man (Research Institute of Industrial Technology, Korea Maritime University) ;
  • O Kyeung-Jin (Department of Radio Science and Engineering, Korea Maritime University) ;
  • Kim Dong-Il (Department of Radio Science and Engineering, Korea Maritime University)
  • Published : 2006.03.01
Download PDF
⟨ Previous Next ⟩

Abstract

In this study, EM wave absorbers based on Au coated conductive sheets were prepared, and their reflection and transmission coefficients were investigated. An Au coated conductive sheet showed the transmission loss higher than 40 dB in $1{\sim}18$ GHz. Ba ferrite EM wave absorbers with an Au coated conductive sheet showed enhanced EM wave absorption and shield to compare with Ba ferrite EM wave absorbers without conductive sheets. Proposed EM wave absorbers with conductive sheets are useful to protect EM machines from EM interference by strayfields.

Keywords

References

  1. J. M. Song, H. J. Yoon, D. I. Kim, S. J. Kim. S. M. Ok, B. Y. Kim, and K. M. Kim, 'Dependence of electromagnetic wave absorption on ferrite particle size in sheet-type absorbers', J. Korean Phys. Soc., vol. 42, no. 5, pp. 671-675, 2003
  2. S. Sugimoto, K. Okayama, S. Kondo, H. Ota, M. Kimura, Y. Yoshida, H. Nakamura, D. Book, T. Kagotami, and M. Homma, 'Barium M-type ferrite as an electromagnetic microwave absorbers in the GHz range', Materials Trans. JIM, vol. 39, no. 10, pp. 1080-1083, 1998 https://doi.org/10.2320/matertrans1989.39.1080
  3. A. Verma, R. G. Mendiratta, T. C. Goel, and D. C. Dube, 'Microwave studies on strontium ferrite based absorbers', J. Electroceramics, vol. 8, pp. 203-208, 2002 https://doi.org/10.1023/A:1020841915616
  4. S. H. Moon, S. J. Shin, J. M. Song, D. I. Kim, and K. M. Kim, 'Development of composite Ba ferrite EM wave absorbers for GHz frequency', J. Korea Electromagnetic Engineering Soc., vol. 14, no. 12, pp. 1329-1334, 2003
  5. Y. Naito, Electromagnetic Wave Absorbers(New Ohm, Tokyo, 1987), pp. 86