吸波物质电磁参数应具备特征的理论分析  

Analysis on Characteristic of Electromagnetic Parameters for Absorbing Material

作　　者：潘华锦[1] 张丽[1] 周娴[1] 

机构地区：[1]军械工程学院基础部,河北石家庄050003

出　　处：《军械工程学院学报》2016年第1期27-30,共4页Journal of Ordnance Engineering College

摘　　要：根据电磁波在介质表面反射和在材料中吸收的特征,讨论电磁参数、介质厚度和频率三者对吸收性能的影响。针对吸波材料后加金属板的模型,建立狭义和广义两种实现吸波的理论条件,给出吸波材料电磁参数需满足的特征条件,分析造成难以实现较宽频带内高吸收的原因,为材料的制备和设计提供可行的方向.The characteristics of absorbing material is associated with the electromagnetic parameters ε, μ, thickness and frequency. In the paper, the model of absorber backed with metal is analyzed, and the theoretical conditions for realizing absorption are discussed generally as well as specially. The analytical result shows that in general way very small change of theε, μ,thickness and frequency can cause obvious change of reflection coefficient. So it is difficult to put through in this way. In special way it has the better feasibility by precision theory.

关 键 词：电磁参数 阻抗匹配 电磁损耗 

分 类 号：O451[理学—无线电物理]