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

Li, Z. W.; Yang, Z. H.; Kong, L. B.
March 2010
Applied Physics Letters;3/1/2010, Vol. 96 Issue 9, p092507
Academic Journal
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.


Related Articles

  • Microwave Composite Absorbers Based on Barium Hexaferrite/Carbon Nanotubes for 0.01- 18 GHz Applications. Dotsenko, Olga A.; Frolov, Kirill O. // Key Engineering Materials;2016, Vol. 685, p553 

    Nano- and microstructured composite materials have opened a new era for multifunctional materials. In particular, barium hexaferrites and carbon nanotubes can be applied in order to improve electromagnetic properties in composites. Magnetic materials with a texture based on barium ferrite and...

  • Mn, Ti substituted barium ferrite to tune electromagnetic properties and enhanced microwave absorption. Ji, Ke-Ke; Li, Yong; Cao, Mao-Sheng // Journal of Materials Science: Materials in Electronics;May2016, Vol. 27 Issue 5, p5128 

    Mn, Ti substituted barium ferrite (BaFe(MnTi)O) was fabricated by solid state reaction, which shows high efficiency and wide band microwave absorption. The minimum reflection loss ( R ) reaches up to −31 dB and the bandwidth below −10 dB almost covers the whole X band. The...

  • Static and dynamic magnetic properties of Co2Z barium ferrite nanoparticle composites. Li, Z. W.; Chen, L.; Ong, C. K.; Yang, Z. // Journal of Materials Science;Feb2005, Vol. 40 Issue 3, p719 

    The static, dynamic and attenuation properties of Co2Z barium ferrites and Co2Z composites have been studied. The results showed that both static and dynamic magnetic properties are significantly different for large particles and nanoparticles. As compared to large particles, Co2Z nanoparticles...

  • Low loss Z-type barium ferrite (Co2Z) for terrestrial digital multimedia broadcasting antenna application. Bae, S.; Hong, Y. K.; Lee, J. J.; Jalli, J.; Abo, G. S.; Lyle, A.; Seong, W. M.; Kum, J. S. // Journal of Applied Physics;Apr2009, Vol. 105 Issue 7, p07A515 

    Magnetic properties of sol-gel and conventional ceramic processed Ba3Co2Fe2O41 hexaferrite were investigated and compared for terrestrial digital multimedia broadcasting (T-DMB) antenna application. All of the synthesized powder and sintered body showed almost single Z-phase. The loss tan δ...

  • Electromagnetic Properties of W - Hexaferrites Composites with Magnetic Texture. Wagner, Dmitry V.; Dotsenko, Olga A.; Ulyanova, Olga A. // Advanced Materials Research;2014, Issue 1040, p29 

    In this article the possibility of production of composite materials with magnetic texture are discussed. For texturing of magnetic polymer materials the device was made. The W-type hexaferrites were synthesized using a standard ceramic technique. Magnetic materials with a texture based on...

  • Size effect on the static and dynamic magnetic properties of W-type barium ferrite composites: From microparticles to nanoparticles. Li, Z. W.; Lin, G. Q.; Chen, Linfeng; Wu, Y. P.; Ong, C. K. // Journal of Applied Physics;11/1/2005, Vol. 98 Issue 9, p094310 

    The static, dynamic, and attenuation properties of BaCoZnFe16O27 barium ferrites and their composites have been studied using microparticles and nanoparticles. The results showed that BaCoZnFe16O27 microparticles have larger saturation magnetization Ms and smaller coercivity Hc than do...

  • Nanostructural M-type barium hexaferrite synthesized by spark plasma sintering method. Wen-Yu Zhao; Qing-Jie Zhang; Xin-Feng Tang; Hai-Bin Cheng; Peng-Cheng Zhai // Journal of Applied Physics;4/15/2006, Vol. 99 Issue 8, p08E909 

    This investigation shows that the spark plasma sintering (SPS) method may not only absolutely prevent the formation of intermediate phase α-Fe2O3 but also significantly lower the crystallization temperature of M-type barium hexaferrite. A kind of textured sample composed of major phase M-type...

  • Enhancement in physical properties of barium hexaferrite with substitution – ERRATUM. Kaur, Talwinder; Kumar, Sachin; Bhat, Bilal H.; Srivastava, Ajeet Kumar // Journal of Materials Research;Sep2015, Vol. 30 Issue 18, p2844 

    A correction to the article "Enhancement in physical properties of barium hexaferrite with substitution" that was published in the August 20, 2015 issue is presented.

  • Spin-spray deposited NiZn-Ferrite films exhibiting μr′ > 50 at GHz range. Obi, Ogheneyunume; Liu, Ming; Lou, Jing; Stoute, Stephen; Xing, Xing; Sun, Nian X.; Warzywoda, Juliusz; Sacco, Albert; Oates, Daniel E.; Dionne, Gerald F. // Journal of Applied Physics;Apr2011, Vol. 109 Issue 7, p07E527 

    Ni0.27ZnxFe2.73-xO4 (with x = 0.03-0.1) thin films with high real permeability μr′ in the GHz range were fabricated by the spin spray process onto glass substrates in the presence of an external magnetic field of 360 Oe. These films exhibit high permeabilities that exceeded the Snoek...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics