Broadband electromagnetic-wave absorption by FeCo/C nanocapsules
Broadband electromagnetic-wave absorption by FeCo/C nanocapsules
复制标题
FeCo/C 纳米胶囊的宽带电磁波吸收
DOI：
10.1063/1.3177067
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发表时间：
2009-07-13
影响因子：
4
通讯作者：
Zhang, Z. D.
中科院分区：
文献类型：
--
作者：
Han, Z.;Li, D.;Zhang, Z. D.
研究了FeCo/C纳米胶囊的电磁波吸收特性。与早期报道的材料，包括其他nanocaptiles相比，FeCo/C nanocaptiles的吸收幅度不随吸收层厚度的增加而降低。通过在1.6和8.5 mm之间选择适当的层厚度，可以在2-18 GHz范围内的所有频率下获得超过-20 dB的反射损耗（RL）。对于2 mm的层，可以获得从10到18 GHz的最宽带宽（RL值超过-10 dB），覆盖X波段的一半和整个K-u波段。
Electromagnetic-wave absorption by FeCo/C nanocapsules has been investigated. In contrast to earlier reported materials, including other nanocapsules, the absorption amplitude of FeCo/C nanocapsules is found not to decrease with increasing absorption-layer thickness. A reflection loss (RL) exceeding -20 dB can be obtained for all frequencies within the 2-18 GHz range by choosing an appropriate layer thickness between 1.6 and 8.5 mm. The broadest bandwidth (RL values exceeding -10 dB) from 10 to 18 GHz, covering half of the X-band and the whole K-u-band, is obtained for a 2 mm layer.