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 language | English |
|---|---|
| Title of host publication | Key Engineering Materials |
| Pages | 451-454 |
| Number of pages | 4 |
| Volume | 421-422 |
| DOIs | |
| Publication status | Published - 2010 |
| Externally published | Yes |
| Event | 6th Asian Meeting on Electroceramics, AMEC-6, in conjunction with the Electronics Division Meeting of the Ceramic Society of Japan - Tsukuba, Japan Duration: Oct 22 2008 → Oct 24 2008 |
Publication series
| Name | Key Engineering Materials |
|---|---|
| Volume | 421-422 |
| ISSN (Print) | 10139826 |
Other
| Other | 6th Asian Meeting on Electroceramics, AMEC-6, in conjunction with the Electronics Division Meeting of the Ceramic Society of Japan |
|---|---|
| Country | Japan |
| City | Tsukuba |
| Period | 10/22/08 → 10/24/08 |
Fingerprint
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
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 proceeding › Conference contribution
}
TY - GEN
T1 - Effect of sendust particle size on absorption characteristics of composite electromagnetic wave absorber
AU - Sakai, Kenji
AU - Wada, Yoichi
AU - Sato, Yuuki
AU - Yoshikado, Shinzo
PY - 2010
Y1 - 2010
N2 - 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.
AB - 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.
KW - Composite electromagnetic wave absorber
KW - Eddy current
KW - Relative complex permeability
KW - Sendust
UR - http://www.scopus.com/inward/record.url?scp=75749091141&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=75749091141&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/KEM.421-422.451
DO - 10.4028/www.scientific.net/KEM.421-422.451
M3 - Conference contribution
AN - SCOPUS:75749091141
SN - 0878493069
SN - 9780878493067
VL - 421-422
T3 - Key Engineering Materials
SP - 451
EP - 454
BT - Key Engineering Materials
ER -