摘要
提出了一种新型的紧凑型交互嵌入式人工磁导体(IE—AMC:inter—embedded artificial magnetic conductor)结构。用有限元方法分析了其反射相位特性及表面波传输特性。结果表明,对于同样的单元尺寸,这种结构可以使AMC结构的谐振频率降低超过70%。换句话说,设计具有同样谐振频率的AMC结构单元,使用这种结构的单元尺寸仅为普通结构的30~40%左右。这使得仅用双层结构就可以实现可用于低频无线通信波段的AMC结构。同时在实际的微波集成电路及天线阵应用中,有限的空间内可以使用更多的AMC结构单元,从而使电路及天线阵的性能得到更大的提高。
A novel compact inter-embedded artificial magnetic conductor (IE-AMC) is introduced in this paper. The reflection phase property and surface wave dispersion are analyzed using finite element method. For a fixed cell size, the resonant frequency of this structure can be decreased more than 70%. In other words, for a desired resonant frequency, the IE-AMC structure cell size is only about 30-40% of conventional structure. Therefore an AMC applied to wireless communication can be achieved using two-layer structure. In practical application to microwave integrated circuits and antenna arrays, more AMC unit cells can be utilized in a fixed available space and the performance of components can be improved more.
出处
《电波科学学报》
EI
CSCD
北大核心
2007年第1期21-26,共6页
Chinese Journal of Radio Science
基金
973国家安全重大基础预研资助项目(51307)
高科技发展计划创新基金资助项目
关键词
光子晶体
电磁带隙
人工磁导体
交互嵌入式
互耦
表面波
photonic crystals (PCs), electromagnetic band-gap (EBG), artificial magnetic conductor (AMC), inter-embedded (IE), mutual coupling, surface wave