铁氧体衬底——手征性材料隐身波特性研究

Research on Stealthy Electromagnetic Wave Characteristics of Chiral Materials of Ferrite Substrate

指出铁氧体衬底-开口铜导体方形环是一种复合手征性介质结构,给出了本构方程、电磁波反射与透射关系表达式。通过开口尺寸、间隙、单元周期及介质电参数ε、μ的变化,计算了电磁波的反射,讨论了变化的特性,得出这种结构具有弱的频率选择性、波反射减弱和频带展宽等结论。采用介质中的耦合机制对波特性进行了简要分析,结论与文献进行了对比。最后预测,铁氧体与左手Metamaterials材料复合将有助于拓展隐身技术的研究领域。

A kind of composite chiral media structure of ferrite base-period open copper conductor square ring is pointed out in this paper, some equations of the basic construction, electromagnetic wave reflection and transmission relations are given. Electromagnetic wave reflection coefficients are calculated out by separate selection variable of gap dimension, Clearance, cell period and medium electricity parameter ε 、μ, variation speeialties are discussed, and the conclusions of frequency selection property indistlnctively, wave reflection weak and frequency range extension etc are got. Electromagnetic wave characteristics are analyzed simply by using coupling mechanism in medium, and effects are compared with result of documents. At last, a prophecy is given that the compound of ferrite and left handed metamaterials will help to open up of stealth technology the research domain.