title: Broadband metamaterial absorber based on coupling resistive frequency selective surface.
abstract: We report the design, fabrication, and measurement of a broadband metamaterial absorber, which consists of lossy frequency selective surface (FSS) and a metallic ground plane separated by a dielectric layer. The compact single unit cell of the FSS contains crisscross and fractal square patch which couple with each other. Both qualitative analysis by equivalent circuit and accurate numeric calculation show that the coupling between the crisscross and the fractal square patch can enhance the bandwidth with the reflectivity below -10dB in the frequency range of 2-18GHz by producing a third absorption null. In the end, the designed absorber was realized by experiment.
authors.affiliation: Key Laboratory of Advanced Ceramic Fibers and Composites, College of Aerospace and Materials Engineering, National University of Defence Technology, Changsha 410073,China. slk_0_1999@yahoo.com.cn
authors.forename: LiangKui
authors.initials: L
authors.lastname: Sun
authors.forename: HaiFeng
authors.initials: H
authors.lastname: Cheng
authors.forename: YongJiang
authors.initials: Y
authors.lastname: Zhou
authors.forename: Jun
authors.initials: J
authors.lastname: Wang