摘要
Manipulation of electromagnetic waves is essential to various microwave applications,and absorbing devices composed of low-pressure gas discharge tubes and radar-absorbing materials(RAM)can bring new solutions to broadband electromagnetic stealth.The microwave transmission method is used to measure the physical parameters of the plasma unit.The designed structure exhibits superior absorption performance and radar cross-section(RCS)reduction capability in the 2–18 GHz band,with unique absorption advantage in the S and C frequency bands.It is found that the combination of the plasma and the RAM can significantly broaden the absorption frequency band and improve the absorption performance with excellent synergistic stealth capability.Experimental and simulation results present that broadband,wide-angle,tunable electromagnetic wave absorption and RCS reduction can be achieved by adjusting the spatial layout of the combined plasma layer and the type of RAMs,which creates opportunities for microwave transmission and selective stealth of equipment.Therefore,the wave manipulation by combined plasma array and RAM provides a valuable reference for developing numerous applications,including radar antenna stealth,spatial filter,and high power microwave shielding.
作者
Xuesong DENG
Chenglong DING
Yahui WANG
Zhigang LI
Li CHENG
Zongsheng CHEN
Xiangyin LV
Jiaming SHI
邓学松;丁成龙;王亚辉;李志刚;程立;陈宗胜;吕相银;时家明(State Key Laboratory of Pulsed Power Laser Technology,National University of Defense Technology,Hefei 230037,People’s Republic of China;Anhui Provincial Laboratory of Advanced Laser Technology,National University of Defense Technology,Hefei 230037,People’s Republic of China;Key Laboratory of Infrared and Low Temperature Plasma of Anhui Province,National University of Defense Technology,Hefei 230037,People’s Republic of China)
基金
supported by National Natural Science Foundation of China(No.51907198)
Natural Science Research Foundation of Anhui Province(No.1908085MF205)
Director Fund of State Key Laboratory of Pulsed Power Laser Technology(Nos.SKL2021ZR07,SKL2021ZR06)
China Postdoctoral Science Foundation(No.2021MD703944).
