Radio Frequency Interference Characteristics of Plate-Like Soft Magnetic Powders-Polymer Composites

Sang Woo Kim; Y.W. Yoon; G.Y. Kim; Kyung Sub Lee

doi:10.4028/www.scientific.net/MSF.510-511.826

Paper Titles

Hydrogen Permeation and Surface Characteristics of Pd-Coated Ni-Nb-Ta Amorphous Alloy Membrane
p.810

Comparison of Hydroxyapatite Synthesized under Different Conditions
p.814

Densification Mechanism of Fine Ni-20Cr Powder during Pulsed Electric Current Sintering
p.818

Influence of Two-Step Sintering on Transparency of High Purity Alumina
p.822

Radio Frequency Interference Characteristics of Plate-Like Soft Magnetic Powders-Polymer Composites
p.826

Synthesis and Properties of Bulk Amorphous/Nanocrystalline Aluminum Alloy Composites
p.830

Design for Environment (DfE) of Ultralight Aluminum Camshaft Development
p.834

Tribological Analysis of Al₂O₃/TiO₂/ZrO₂ Nanocomposites as an Alternative for THR Materials
p.838

The Characteristic of the La₃Ga₅SiO₁₄ Single Crystal Grown by Vertical Bridgman Method in Ar Atmosphere
p.842

HomeMaterials Science ForumMaterials Science Forum Vols. 510-511Radio Frequency Interference Characteristics of...

Radio Frequency Interference Characteristics of Plate-Like Soft Magnetic Powders-Polymer Composites

Abstract:

Radio frequency interference characteristics of plate-like Fe-Si-Al alloy powders-polymer composites were investigated for effective noise suppression. Broadband reflection loss characteristics were exhibited in the composites below a critical compaction pressure of 1.56 x 108 N/m2, while narrowband characteristics were shown in the composites above the critical pressure. Although the composites at 2.34 x 108 N/m2 had the highest complex permeability and complex permittivity, the loss properties did not show the broadband characteristics. The peculiar broadband characteristics were obtained in the composites with wideband dependency of the imaginary part of permittivity and permeability. These findings led us to conclude that the broadband electromagnetic interference characteristics of the composites are caused by the coupling effects of magnetic and dielectric resonance in the radio frequency range.

You might also be interested in these eBooks

View Preview

Info:

Periodical:

Materials Science Forum (Volumes 510-511)

Pages:

826-829

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.510-511.826

Citation:

Cite this paper

Online since:

March 2006

Authors:

Sang Woo Kim, Y.W. Yoon, G.Y. Kim, Kyung Sub Lee

Keywords:

Composite, Electromagnetic Properties, Fe-Si-Al Alloy, Plate-Like Powder, Radio Frequency

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] K. Kondo, T. Chiba, H. Ono, S. Yoshida: J. Appl. Phys., Vol. 93 (2003), p.7130.

Google Scholar

[2] S. Shahparnia, O.M. Ramahi: IEEE Trans. Electromagn. Comp., Vol. 46 (2004), p.580.

Google Scholar

[3] S. Yoshida, H. Ono, S. Ando, F. Tsuda, T. Ito, Y, Shimada, M. Yamaguchi, K. Arai, S. Ohnuma, T. Maumoto: IEEE Trans. Magn., Vol. 37 (2001), p.2401.

DOI: 10.1109/20.951185

Google Scholar

[4] S. Yoshida, M. Sato, E. Sugawara, Y. Shimada: J. Appl. Phys., Vol. 85 (1999), p.4636.

Google Scholar

[2] 4 6 8 10 12 14 16 18.

Google Scholar

[2] [4] [6] [8] 6. 25E+07 N/m2 1. 56E+08 N/m2 2. 34E+08 N/m2 3. 12E+08 N/m2 4. 68E+08 N/m2 0. 045 Permeability (µµµµ , ) Frequency [GHz] Fig. 4. Variations of imaginary part of permeability for the composites with pressure. Fig. 5. Variations of imaginary part of permeability for the composites with pressure.

DOI: 10.1109/comswa.2008.4554380

Google Scholar

[2] 4 6 8 10 12 14 16 18.

Google Scholar

[5] [10] [15] [20] [25] 6. 25E+07 N/m.

Google Scholar

[2] 1. 56E+08 N/m.

Google Scholar

[2] 2. 34E+08 N/m.

Google Scholar

[2] Permittivity (εεεε , ) 0. 045 Frequency [GHz].

Google Scholar