Analyzing Bandwidth on the Microwave Absorber by the Interface Reflection Model
Liang Qiao1** , Tao Wang1 , Zhong-Lei Mei2 , Xi-Ling Li1 , Wen-Bo Sui1 , Li-Yun Tang1 , Fa-Shen Li1
1 Institute of Applied Magnetics, Key Laboratory of Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University, Lanzhou 7300002 School of Information Science and Engineering, Lanzhou University, Lanzhou 730000
Abstract :Metallic flaky sendust particles are prepared for use as fillers in electromagnetic attenuation composites. We report the interface reflection model to divide the broad bandwidth into electromagnetic loss and quarter-wavelength ($\lambda/4$) cancelation. Combining with the face reflection calculation, we identify the electromagnetic loss originated from skin effect, which is used to explain over half of the absorbed energy in high frequency band. Most importantly, the unique electromagnetic loss cannot generate the reflection loss (RL) peak. Using the phase relation of face reflection, we show evidence that the $\lambda/4$ cancelation is vital to generate the RL peak. The calculated energy loss agrees well with the experimental data and lays the foundation for further research.
收稿日期: 2015-07-25
出版日期: 2016-02-26
:
75.50.Bb
(Fe and its alloys)
72.30.+q
(High-frequency effects; plasma effects)
75.40.Gb
(Dynamic properties?)
42.81.Dp
(Propagation, scattering, and losses; solitons)
引用本文:
. [J]. 中国物理快报, 2016, 33(02): 27502-027502.
Liang Qiao, Tao Wang, Zhong-Lei Mei, Xi-Ling Li, Wen-Bo Sui, Li-Yun Tang, Fa-Shen Li. Analyzing Bandwidth on the Microwave Absorber by the Interface Reflection Model. Chin. Phys. Lett., 2016, 33(02): 27502-027502.
链接本文:
https://cpl.iphy.ac.cn/CN/10.1088/0256-307X/33/2/027502
或
https://cpl.iphy.ac.cn/CN/Y2016/V33/I02/27502
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