摘要
通过对0.1 mm厚的隔磁片进行网格化处理,制备隔磁片材料的周期结构,研究了网格尺寸、隔磁片磁导率对雷达频段吸波性能的影响。结果表明,网格化处理显著提高了隔磁片在雷达频段的吸波性能,材料原始状态的吸波性能越好,网格化处理后的吸波性能提升越高,而隔磁片磁导率并未呈现对雷达频段吸波性能的正相关影响规律。经10 mm方格化处理,磁导率30、80的隔磁片具有优异的Ku波段吸波性能;磁导率120的隔磁片,具有优异的8~18 GHz宽频带吸波性能,优于相同厚度的雷达吸波涂层,具有较强的工程应用价值。
The periodic structure is prepared by gridding the 0.1 mm thick magnetic shield slice.The effects of grid size and permeability of the magnetic shield slice on radar band absorbing performance are studied.The results show that the grid processing can significantly improve the radar band absorbing performance of the magnetic shield slice.The better the absorbing performance of the material in the original state,the higher the absorbing performance after grid processing.However,the permeability of the magnetic shield slice does not shows a positive correlation effect on the radar band absorbing performance.After 10 mm×10 mm grid processing,the magnetic shield slice with permeability of 30 and 80 have excellent Ku band absorbing performance,and that with permeability of 120 has excellent 8~18 GHz broadband absorbing performance.Those magnetic shield slice are superior to the radar absorbing coatings with the same thickness,and has strong engineering application value.
关键词
隔磁片
周期结构
雷达吸波
magnetic shield slice
periodic structure
radar absorbing
