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动态调控电磁隐身表面
引用本文:徐红欣,陈艳蕊,周永金,肖诗逸.动态调控电磁隐身表面[J].电波科学学报,2021,36(6):849-857.
作者姓名:徐红欣  陈艳蕊  周永金  肖诗逸
作者单位:上海大学特种光纤与光接入网重点实验室,上海200444;上海大学特种光纤与光接入网重点实验室,上海200444;东南大学毫米波国家重点实验室,南京210096
基金项目:国家自然科学基金(61971469);上海市自然科学基金(18ZR1413500);毫米波国家重点实验室开放课题(K202109)
摘    要:电磁隐身表面在雷达通信与隐身领域具有重要的意义. 本文首先从带内透波/带外反射和带内透波/带外吸波隐身表面、带内透波/吸波和电磁感知隐身超表面四部分介绍了电磁隐身表面的研究进展,并提出了一种动态调控电磁隐身超表面,利用PIN二极管实现通带可开关带外吸收的超表面. 当PIN二极管断开时,在11.34 GHz处出现窄带透明窗口,在带外4.8~11.0 GHz和13.5~16.0 GHz的吸波性能均在?10 dB左右;当PIN二极管导通时,吸波频段的吸波性能基本无变化,但关闭了11.34 GHz处的窄带透明窗,从而实现了通带可开关的吸透一体化超表面,在现代军事雷达中有重要应用前景.

关 键 词:超表面  电磁隐身  雷达  电磁感知  智能
收稿时间:2021-06-18

Dynamically tunable electromagnetic stealth surface
Affiliation:1.Key Laboratory of Specialty Fiber Optics and Optical Access Networks, Shanghai University, Shanghai 200444, China2.State Key Laboratory of Millimeter Waves, Southeast University, Nanjing 210096, China
Abstract:Electromagnetic stealth surface has important applications in the fields of radar, military communication, etc. First, we have introduced the recent progress about in-band transmission and out-of-band reflection stealth surface, in-band transmission/absorption stealth surface, and electromagnetic sensing stealth metasurface. Then a dynamically tunable electromagnetic stealth surface is proposed, whose pass band can be switched on/off by using PIN diodes. When the diodes are OFF, there is a narrow transmission band around 11.34 GHz and broad absorption band at 4.8?11 GHz and 13.5?16 GHz. When the diode is ON, the narrow transmission band is switched OFF, while the absorption band is almost unchanged. This work has a great prospect in the field of modern military radar.
Keywords:
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