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Applied Physics Letters / Volume 96 / Issue 9 / MAGNETISM AND SUPERCONDUCTIVITY

Appl. Phys. Lett. 96, 092507 (2010); http://dx.doi.org/10.1063/1.3340460 (3 pages)

Ultrabroad bandwidth of single-layer electromagnetic attenuation composites with flaky fillers

Z. W. Li, Z. H. Yang, and L. B. Kong

Temasek Laboratories, National University of Singapore, 10 Kent Ridge Crescent, Singapore 119260

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(Received 3 December 2009; accepted 9 February 2010; published online 2 March 2010)

Z-type barium ferrite flakes were prepared for use as fillers in electromagnetic attenuation composites. The composites with the flaky fillers exhibit greatly enhanced complex permeability, thus achieving an ultrabroad attenuation bandwidth. μ0′ and μmax″ are enhanced by above 150%, and the relative bandwidth WR of 6–7 can be achieved. The bandwidth achieves 75% of the theoretically maximum relative bandwidth. The composites with the flaky fillers are powerful and potential candidates as electromagnetic attenuation materials with ultrabroad bandwidth in L, C, and S bands.

© 2010 American Institute of Physics

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KEYWORDS and PACS

Keywords

composite materials, ferrites, permeability, permittivity, sintering

PACS

  • 81.20.Ev

    Powder processing: powder metallurgy, compaction, sintering, mechanical alloying, and granulation

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3340460

PUBLICATION DATA

ISSN

0003-6951 (print)  
1077-3118 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

For access to fully linked references, you need to log in.
    Z. W. Li, Y. B. Gan, X. Xin, and G. Q. Lin, J. Appl. Phys. 103, 073901 (2008)JAPIAU000103000007073901000001.

    A. Chevalier and M. Le Floc'h, J. Appl. Phys. 90, 3462 (2001)JAPIAU000090000007003462000001.

    Z. W. Li, L. F. Chen, and C. K. Ong, J. Appl. Phys. 96, 534 (2004)JAPIAU000096000001000534000001.


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