A Study on the Improvement of EM Wave Absorption Characteristics in Paint-type EM Wave Absorbers

Paint형 전파 흡수체의 전파 흡수 성능 향상에 관한 연구

  • Che Seung-Hun (Dept. of Radio Science, National Korea Maritime University) ;
  • Kim Dong-Il (Dept. of Radio Science, National Korea Maritime University) ;
  • Choi Jeong-Hyun (Dept. of Radio Science, National Korea Maritime University)
  • 제승훈 (한국해양대학교 전파공학부) ;
  • 김동일 (한국해양대학교 전파공학부) ;
  • 최정현 (한국해양대학교 전파공학부)
  • Published : 2006.04.01

Abstract

In this research, we fabricated paint-type EM wave absorbers by using Mn-Zn, Ni-Zn, Ba, Sr Ferrite, and Sendust. To prepare the absorbers, enamel, epoxy and urethane paints were used as binders. We tested EM wave absorption of them. The band-width of EM wave absorbers coated with $Al(OH)_3$ was larger than non-coated EM wave absorbers. The fabricated EM wave absorbers show a reflection coefficient of 20 dB approximately at X-band for a 2 mm double-layer sample.

References

  1. Dong Il Kim, June Young Son, Young Su Won, Dong Woo Ku, Ki Man Kim, Jae Man Song, and Byung Deok Bae, 'A study on broadband design of em wave absorber for anechoic chamber', Journal of The Korean Electronagnetic Engineering Society, vol. 2, no. 1, pp. 16-21, 2002
  2. Dong Il Kim, Su Joung Kim, and Jae Man Song, 'Dependence of electronmagnetic wave absorption properites on binders', Journal of The Korean Physical Society, vol. 43, no. 2, pp. 269-272, 2003
  3. Dong Il Kim, Jae Young Bae, Jun Yong Son, Young Su Won, and Jae Man Song, 'A study on fabrication and evaluation of ferrite wave absorber', Journal of The Korean Electromagnetic Engineering Society, vol. 1, no. 1, pp. 95-99, 2001