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

被引:27
作者
Li, Z. W. [1 ]
Yang, Z. H. [1 ]
Kong, L. B. [1 ]
机构
[1] Natl Univ Singapore, Temasek Labs, Singapore 119260, Singapore
关键词
composite materials; ferrites; permeability; permittivity; sintering; BARIUM FERRITE; PERMEABILITY; ABSORBERS;
D O I
10.1063/1.3340460
中图分类号
O59 [应用物理学];
学科分类号
摘要
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. mu(')(0) and mu(')(max) are enhanced by above 150%, and the relative bandwidth W(R) 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.
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页数:3
相关论文
共 12 条
  • [1] Chen L.F., 2004, MICROWAVE ELECT MEAS, P177
  • [2] Dynamic permeability in soft magnetic composite materials
    Chevalier, A
    Le Floc'h, M
    [J]. JOURNAL OF APPLIED PHYSICS, 2001, 90 (07) : 3462 - 3465
  • [3] Absorbing properties and structural design of microwave absorbers based on carbonyl iron and barium ferrite
    Feng, Y. B.
    Qiu, T.
    Shen, C. Y.
    [J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2007, 318 (1-2) : 8 - 13
  • [4] Huang R. F., 2009, Progress In Electromagnetics Research B, V14, P407, DOI 10.2528/PIERB09040902
  • [5] KNOTT EF, 1993, RADAR CROSS SECTION, P339
  • [6] Konishi Y, 1997, MICROW OPT TECHN LET, V16, P156, DOI 10.1002/(SICI)1098-2760(19971020)16:3<156::AID-MOP9>3.0.CO
  • [7] 2-L
  • [8] Characteristics of effective permeability and resonance frequency for barium-ferrite/epoxy composites
    Li, Z. W.
    Gan, Y. B.
    Xin, Xu
    Lin, G. Q.
    [J]. JOURNAL OF APPLIED PHYSICS, 2008, 103 (07)
  • [9] Microwave attenuation properties of W-type barium ferrite BaZn2-xCoxFe16O27 composites
    Li, ZW
    Chen, L
    Wu, Y
    Ong, CK
    [J]. JOURNAL OF APPLIED PHYSICS, 2004, 96 (01) : 534 - 539
  • [10] FREQUENCY DISPERSION OF PERMEABILITY IN FERRITE COMPOSITE-MATERIALS
    NAKAMURA, T
    TSUTAOKA, T
    HATAKEYAMA, K
    [J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1994, 138 (03) : 319 - 328