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论文类型：期刊论文

发表时间：2022-06-30

发表刊物：湖北汽车工业学院学报

期号：1

页面范围：30-42

ISSN号：1008-5483

摘要：The origin, classifications, novel features and their applications of the left-handed metamate?rial were reviewed in the framework of classical physics. Left-handed metamaterials have developed by leaps and bounds along with the ever-changing material preparation technology. Now‘Resonant Patch-typed’,‘Transmission Line-lumped’,‘Thin Film-laminated’,‘Granular-composited’and‘Fishing-net’are five main types of left-handed metamaterials. Negative refractive index is the core character of left-handed metamaterials; and it generates super electromagnetic properties such as negative refrac?tion, super-resolution imaging, photonic tunneling;while the reversed Doppler effect, reversed Ceren?kov radiation and abnormal Goos-Haenchen displacement are derived from the backward-wave charac?ter of left-handed metamaterials. In addition, sub-wavelength transmission is an important character of left-handed metamaterial cells. Due to the above-mentioned properties, left-handed metamaterials have important potential applications in imaging, invisibility, radar, antennas, sensors, etc.

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