Materials Reports  2021, Vol. 35 Issue (z2): 115-117 |
| INORGANIC MATERIALS AND CERAMIC MATRIX COMPOSITES |
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| Design of Broadband Absorbing Material for Sharp-cut Structure |
| MU Wudi, XU Yongping, SHENG Dejun
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| Academy of Hi-Tech Research, Hunan Institute of Traffic Engineering, Changsha 410114, China |
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Abstract Based on the impedance matching requirement of absorbing material, a kind of tapered and conical absorbing structure is designed. The absorbing structure is composed of a series of conical arrays arranged on the substrate. With the angle of the tip and the square resistance of the conductive coating on the surface of the tip as the parameters, the absorbing properties of the material are analyzed numerically. In the sharp angle is 15°and surface sheet resistance of 200 Ω/sq, absorbing excellent performance in a broad band range. The reflectivity test results of the tapered and tapered absorbing materials prepared by using design parameters are as follows. Under the condition of design parameters, in the frequency range of 2—18 GHz, the reflectivity of the absorbing material is lower than -10 dB, and the bandwidth is 14.4 GHz. The bandwidth of reflectivity lower than -20 dB is 13.3 GHz, and the absorption peak intensity is 34.2 dB at 7GHz. The results of simulationand experiment show that the tapered structure absorbing material has wide band strong absorbing effect.
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Published: 09 December 2021
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| About author:: Wudi Mu received his Ph.D. degree in materials from National Defense University of Science and Technology (NUDT) in 2009. Since July 2020, he has worked in the High Tech Research Institute of Hunan Institute of Communications Engineering. Mainly engaged in ca-mouflage and stealth technology and product development. |
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