期刊
PHYSICAL REVIEW LETTERS
卷 111, 期 23, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.111.233001
关键词
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资金
- AFOSR YIP [FA9550-11-1-0009,]
- DTRA YIP [HDTRA1-12-1-0022]
- NSF CAREER [ECCS-0953311]
- Div Of Electrical, Commun & Cyber Sys
- Directorate For Engineering [0953311] Funding Source: National Science Foundation
We introduce the concept and practical design of broadband, ultrathin cloaks based on non-Foster, negatively capacitive metasurfaces. By using properly tailored, active frequency-selective screens conformal to an object, within the realm of a practical realization, we show that it is possible to drastically reduce the scattering over a wide frequency range in the microwave regime, orders of magnitude broader than any available passive cloaking technology. The proposed active cloak may impact not only invisibility and camouflaging, but also practical antenna and sensing applications.
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