三维频率选择结构的研究进展  

Recent Advances in Three-dimensional Frequency Selective Structures

作　　者：李波 谢锦明 常玉梅 韩叶 沈忠祥[2] Li Bo;Xie Jinming;Chang Yumei

机构地区：[1]南京邮电大学电子科学与工程学院 [2]南洋理工大学电子电气工程学院

出　　处：《安全与电磁兼容》2021年第1期16-25,共10页Safety & EMC

摘　　要：频率选择结构是一种对空间电磁波具有选择特性的人工周期结构。传统FSS在单元结构、分析理论及设计方法上的研究日趋成熟,但这类FSS基于二维或2.5维的周期单元对电磁波实施调控时,其工作性能和设计灵活性受到严重限制。基于波导腔或传输线的多模周期单元经过周期排布而构成的三维FSS可在空间维度上扩展,使得三维FSS在设计上可提供更多的自由度,从而表现出优越的电磁波调控性能。综述了三维FSS最新的研究进展,并重点介绍了三维FSS设计的最新技术及其在电磁兼容中的应用前景。Frequency selective structure(FSS)is a periodic artificial structure that can produce electromagnetic selectivity.Various types of structures,analysis theories,and design methods have been developed for conventional FSSs.Unfortunately,these conventional surfaces manipulate electromagnetic waves through their 2D or 2.5D periodic elements,thus leading to serious limitations to their filtering performance and design flexibilities.A new class of 3D FSS,consisting of 3D multimode elements of waveguide cavities or transmission-line structures,can provide more degrees of freedom in the spatial dimensions to exhibit superior performance features.The recent research progresses of 3D FSSs with a focus on the state-of-the-art techniques in the design and exploration of 3D FSSs,as well as their promising applications in electromagnetic compatibility(EMC)have been reviewed.

关 键 词：频率选择结构 周期结构 空间滤波器 

分 类 号：TN03[电子电信—物理电子学]