摘要
以片状铁、针状多晶铁纤维、球形羰基铁粉吸收剂为原材料分析探讨了磁性吸收剂形状对其微波电磁参数的影响。结果表明，2GHz时磁导率实部最大的为片状，其次是针状，最小的为球形吸收剂，片状铁吸收剂磁导率实部在2GHz时可达4．65，磁导率虚部2～18GHz均高于多晶铁纤维和羰基铁粉。模拟其吸波性能发现片状铁吸收剂吸波性能在2～9．6GHz优于多晶铁纤维和羰基铁粉，可用于提高吸波材料的低频吸波性能。
Based on flake-shaped iron（FSI）,needle-shaped polycrystalline iron fiber（PIF） and carbonyl iron particles（CIP）, radar absorbing materials properties for different absorbent shapes was studied.The result shows that the real magnetic permeability of FSI is higher than PIF and CIP, the real magnetic permeability of FSI reaches 4.65 at 2GHz,and the imaginary magnetic permeability was higher than PIF＇s and CIP＇s in the frequency range of 2-18GHz.The simulated reflection loss result of these three RAM absorbent shows that the FSI is better than PIF and CIP in the frequency range of 2-9.6GHz,FSI can be used to improve the RAM performance in lower frequency such as S and C band.
出处
《功能材料》
EI
CAS
CSCD
北大核心
2007年第A08期2963-2965,共3页
Journal of Functional Materials
关键词
雷达吸波材料
吸收剂
形状
电磁参数
微波性能
radar absorbing materials（RAM）
absorbent
shape
electronic and magnetic parameters
microwaveproperties
