Effect of sendust particle size on absorption characteristics of composite electromagnetic wave absorber

Kenji Sakai, Yoichi Wada, Yuuki Sato, Shinzo Yoshikado

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

The effects of the particle size of sendust, which is an alloy of Al 5%, Si 10%, and Fe 85%, on the absorption characteristics of composite electromagnetic wave absorbers made of polystyrene resin and sendust were investigated in the frequency range from 1 to 40 GHz. The size of sendust particles was varied between approximately 5 and 20 μm. A metal-backed single-layer absorber made of 20 μm sendust particles absorbed more than 99% of electromagnetic wave power at frequencies above 20 GHz. Meanwhile, a composite made of 5 μm particles exhibited a return loss of less than -20 dB in the frequency range of not only several GHz but also above 30 GHz. In addition, the relative complex permeability μr * was shown to be controlled by adjusting the particle size of sendust, and an electromagnetic wave absorber with a flexible design was proposed.

Original languageEnglish
Title of host publicationKey Engineering Materials
Pages451-454
Number of pages4
Volume421-422
DOIs
Publication statusPublished - 2010
Externally publishedYes
Event6th Asian Meeting on Electroceramics, AMEC-6, in conjunction with the Electronics Division Meeting of the Ceramic Society of Japan - Tsukuba, Japan
Duration: Oct 22 2008Oct 24 2008

Publication series

NameKey Engineering Materials
Volume421-422
ISSN (Print)10139826

Other

Other6th Asian Meeting on Electroceramics, AMEC-6, in conjunction with the Electronics Division Meeting of the Ceramic Society of Japan
CountryJapan
CityTsukuba
Period10/22/0810/24/08

Fingerprint

Electromagnetic waves
Particle size
Composite materials
Wave power
Polystyrenes
Resins
Metals

Keywords

  • Composite electromagnetic wave absorber
  • Eddy current
  • Relative complex permeability
  • Sendust

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Sakai, K., Wada, Y., Sato, Y., & Yoshikado, S. (2010). Effect of sendust particle size on absorption characteristics of composite electromagnetic wave absorber. In Key Engineering Materials (Vol. 421-422, pp. 451-454). (Key Engineering Materials; Vol. 421-422). https://doi.org/10.4028/www.scientific.net/KEM.421-422.451

Effect of sendust particle size on absorption characteristics of composite electromagnetic wave absorber. / Sakai, Kenji; Wada, Yoichi; Sato, Yuuki; Yoshikado, Shinzo.

Key Engineering Materials. Vol. 421-422 2010. p. 451-454 (Key Engineering Materials; Vol. 421-422).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Sakai, K, Wada, Y, Sato, Y & Yoshikado, S 2010, Effect of sendust particle size on absorption characteristics of composite electromagnetic wave absorber. in Key Engineering Materials. vol. 421-422, Key Engineering Materials, vol. 421-422, pp. 451-454, 6th Asian Meeting on Electroceramics, AMEC-6, in conjunction with the Electronics Division Meeting of the Ceramic Society of Japan, Tsukuba, Japan, 10/22/08. https://doi.org/10.4028/www.scientific.net/KEM.421-422.451
Sakai K, Wada Y, Sato Y, Yoshikado S. Effect of sendust particle size on absorption characteristics of composite electromagnetic wave absorber. In Key Engineering Materials. Vol. 421-422. 2010. p. 451-454. (Key Engineering Materials). https://doi.org/10.4028/www.scientific.net/KEM.421-422.451
Sakai, Kenji ; Wada, Yoichi ; Sato, Yuuki ; Yoshikado, Shinzo. / Effect of sendust particle size on absorption characteristics of composite electromagnetic wave absorber. Key Engineering Materials. Vol. 421-422 2010. pp. 451-454 (Key Engineering Materials).
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