A novel ultra-broadband absorber based on carbon-coated honeycomb panels combined with metamaterials. (23rd September 2022)

• Record Type: Journal Article
• Authors: Wang, Yang; Chen, Shiju; Liu, Shanshan; Wu, Jiong; Wang, Youcheng; Ding, Xiaoxia; Yang, Helin
• Is Part Of: Journal of physics. Volume 55:Number 45(2022)
• Publication Date: 2022-09-23
• Subjects: ultra-broadband -- absorbers -- honeycomb; Physics -- Periodicals; 530
• DOI: 10.1088/1361-6463/ac90cf
• Languages: English
• ISSNs: 0022-3727

Abstract

Abstract: In this paper, a radar absorber with composite structure of metasurface/honeycomb is proposed. Carbon coating is used as a loss material, and honeycomb sandwich structure is used as a support layer to enhance mechanical strength. Introducing impedance matching layer in the top layer of honeycomb absorber can significantly improve the low-frequency absorption performance. The simulation results show that the absorption efficiency of the combined structure absorber can reach more than 90% in the frequency range of 3.65–17.3 GHz. We verified the simulation results through experiments. This method provides an idea for the design of ultra-wideband absorber and has a potential application prospect in stealth material design.