CAJ | 학술논문

为了降低吸波体的雷达散射截面,实现完美吸波,利用超材料的电磁谐振特性,设计了一款开缝双环型结构吸波体。得益于超材料的LC谐振,该结构在1.59和4.06 GHz具有超强吸波特性,在谐振频点处,超材料吸波体的某些区域相当于一个电磁波收集器,将能量限制在吸波体内,再转化成热能。经计算验证,该吸波体结构在1.59、4.06 GHz 的雷达散射截面(RCS)分别为-24、-23 dB,远低于传统金属表面结构,能实现理想吸波。
위료강저흡파체적뢰체산사절면,실현완미흡파,이용초재료적전자해진특성,설계료일관개봉쌍배형결구흡파체。득익우초재료적LC해진,해결구재1.59화4.06 GHz구유초강흡파특성,재해진빈점처,초재료흡파체적모사구역상당우일개전자파수집기,장능량한제재흡파체내,재전화성열능。경계산험증,해흡파체결구재1.59、4.06 GHz 적뢰체산사절면(RCS)분별위-24、-23 dB,원저우전통금속표면결구,능실현이상흡파。
In order to reduce radar cross section (RCS)of absorber and achieve perfect absorbing,a kind of double rings with slots absorber is designed based on the characteristic of metamaterial electromagnetic resonance.Strong absorbing is a-chieved in 1.59 GHz and 4.06 GHz for the LC resonance of metamaterial.In some specific locations of metamaterial absorb-er are equal to electromagnetic wave collector at resonance frequencies,and energy is confined in it and converted into heat. The calculation verifies that RCS of the absorber at operating frequencies 1.59 GHz and 4.06 GHz is respectively -24 dB and -23 dB,and less than conventional metal surface.The perfect absorbing is achieved.