摘要
通过三层设计,使新型水泥基吸波材料与空间波阻抗实现良好的匹配,并具有优良的电磁波损耗特性,测试了新型吸波材料的吸波性能和抗压强度。研究表明,该水泥基吸波板反射率均低于-5.9d B,最小反射率出现在4.5GHz,达-22.4d B;小于-10d B有效带宽为10.8GHz,占整个波段63.3%;水泥基吸波材料28d抗压强度为49.2MPa,较基准的降低了15%。
By triple designing, absorbing materials make it possible that match with space wave impedance, which has excellent electromagnetic loss characteristics. The absorbing properties and compressive strengths of cement-based materials were investigated. Results showed that the reflectivity of triple-layer cement based absorbing panel was lower than-5.9d B in the frequency range of 2~18GHz, and the minimum reflectance was-22.4d B in 4.5GHz. Less than-10 d B effective bandwidth was about 10.8GHz, which covered 63.3% of the whole bandwidth. The compressive strength of cement based absorbing material was 49.2MPa curing at 28 days, and it was reduced by 15% than that of the based specimen.
出处
《混凝土与水泥制品》
2015年第4期6-8,共3页
China Concrete and Cement Products
基金
国家和江苏省博士后基金项目(2014M551588
1301057B)
江苏省建设厅(2013ZD12)资助项目
关键词
吸波材料
吸波性能
抗压强度
反射率
碳纳米管
Absorbing materials
Absorbing properties
Compressive strength
Reflectivity
Carbon nano-tubes
