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《光电工程》 2017年01期
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In-band metamaterial cloak based on the interplay of absorption and transmission

Zeyu Zhao  Hongbo Sun  
【摘要】:A microwave metamaterial shelter with an electromagnetic narrow window over a broad absorption spectrum is experimentally demonstrated by resorting to conventional impedance-matching theory and metamaterial resonance.This device consists of a broad absorber and an embedded electric resonator,and has the ability of permitting one to"see"surroundings but not to be readily sensed by outside detectors.The origin is verified to be a dipole oscillation excited in absorbing region which can induce selective re-emission of the captured energy towards the enclosed space.The performance of"observing without being perceived"is numerically presented.
【作者单位】State
【关键词】metamaterial cloak absorption
【基金】:supported by the National Basic Research Program (973) of China under Grant (2013CBA 01700)
【分类号】:O441.4
【正文快照】:
1 Introduction Over last several decades,the quest for electromagnetic“invisibility”that ever occurred in myths and films only,has always been a research hot topic and maintained the capability of drawing intense interest of microwave engineers.In thi

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