Journal of Navigation and Port Research (한국항해항만학회지)

Korean Institute of Navigation and Port Research (한국항해항만학회)
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Microwave Absorbers Prepared with Alnico Magnets

  • Song Jae Man (Research Institute of Industrial Technology, Korea Maritime University) ;
  • Kim Dong Il (Department of Electronics and Engineering, Korea Maritime University) ;
  • Shin Seung Jae (Department of Electronics and Engineering, Korea Maritime University) ;
  • Moon Sang Hyun (Department of Electronics and Engineering, Korea Maritime University) ;
  • Choi Jung- Hyun (Department of Electronics and Engineering, Korea Maritime University) ;
  • Jeung Jae Hyun (Department of Electronics and Engineering, Korea Maritime University)
  • Published : 2005.03.01
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Abstract

We suggest a cast Alnico magnet as a new microwave absorber. The proposed Alnico microwave absorber shows advanced microwave absorption properties of 24 dB at 13.3 GHz for the thicknesses of 1 mm We also investigated the effects of the carbon, which qjfects strongly to microwave absorption in Alnico magnet microwave absorbers. Central frequency shifts toward lower frequency with increasing Alnico content which is related to the frequency to show tan 8 > 1. Also, we investigated the sample thickness dependence on the microwave absorption properties.

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References

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  1. Current Technologies and Prospects of Electromagnetic Wave Absorbers vol.13, pp.1, 2015, https://doi.org/10.6109/jicce.2015.13.1.036