南京航空航天大学学报（英文版）2021，Vol.38Issue(5)：800-806,7.
一种基于2.5D频率选择表面和磁材料的宽间隔双频带超材料吸波器
A Wide?Spaced Dual?Band Metamaterial Absorber Based on 2.5D Frequency Selective Surfaces and Magnetic Material
摘要
Abstract
By applying meander-line for electrical loss and magnetic material for magnetic loss, we present a metamaterial absorber which is wide-spaced and dual-band(1.35—2.24 GHz and 10.37—12.37 GHz). The novelty of this study mainly lies in a combination of two kinds of losses to consume electromagnetic energy,which can get better dual-band absorption. In the electrical loss layer,meander-line structures are printed on both surfaces of the substrate and the structure series with resistors. Considering the need for miniaturization,we connect eight metallic vias with these meander-line areas to form a compact 2.5-dimensional (2.5D) structure. The dimension of the unit cell is miniaturized to be 5.94 mm×5.94 mm,about 0.035λ at the center frequency of the lower absorption band. In the magnetic loss layer,the 0.4 mm thick magnetic material is employed on a metallic ground plane. In addition,the complex permittivity and complex permeability of the magnetic material are given. Finally,we fabricate a prototype of the proposed absorber and obtain a measurement result which is in good agreement with the full-wave simulation result.关键词
超材料吸波器/双频带/频率选择表面/磁材料Key words
metamaterial absorber/dual-band/frequency selective surfaces/magnetic material分类
信息技术与安全科学引用本文复制引用
邓君昱,刘少斌,李威,吴晨..一种基于2.5D频率选择表面和磁材料的宽间隔双频带超材料吸波器[J].南京航空航天大学学报（英文版）,2021,38(5):800-806,7.基金项目
The authors would like to acknowl?edge the following people for their assistance:KONG Xiang?kun,YUAN Jing,and all with the Electromagnetic Stealth&Metamaterial Application Research Group. （）
