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题名:
A BROADBAND SLAB LENS ANTENNA FORMED FROM GRADIENT REFRACTIVE INDEX METAMATERIALS COMPOSED OF CROSS- SHAPED CELLS
作者: Yuan, Guishan1,2; Dong, Xiaochun1,2; Deng, Qiling1; Liu, Chunheng1; Lu, Yueguang1; Shi, Haofei2; Du, Chunlei2
刊名: MICROWAVE AND OPTICAL TECHNOLOGY LETTERS
出版日期: 2014-05-01
卷号: 56, 期号:5, 页码:1124-1129
关键词: lens antenna ; metamaterial ; broadband antennas
文章类型: Article
英文摘要: A slab lens antenna has been designed to enhance the directivity of a horn antenna efficiently in a wide range of frequencies. A gradient refractive index metamaterial is utilized to compensate phases of electromagnetic waves radiated from a horn, which can transform the cylindrical wave into a plane wave. To obtain broadband property, the gradient refractive index metamaterial composed of cross-shaped conductor, which works in a nonresonant status is designed, and the metamaterial is proved to be broadband, polarization insensitive, and lossless. The slab lens is designed by a collection of metamaterial unit cells with different geometric parameters, where the effective refractive index of the unit cells are determined by the size of cross-shaped conductors to form the required inhomogeneous refractive index distribution. The simulation and experiment results show that the lens located in front of a horn can considerably compress the antenna's radiation patterns over a wide band range from 12 to 18 GHz. (c) 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:1124-1129, 2014
WOS标题词: Science & Technology ; Technology ; Physical Sciences
类目[WOS]: Engineering, Electrical & Electronic ; Optics
研究领域[WOS]: Engineering ; Optics
关键词[WOS]: PLASMA FREQUENCY
收录类别: SCI
语种: 英语
WOS记录号: WOS:000332519500028
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ioe.ac.cn/handle/181551/2508
Appears in Collections:光电技术研究所被WoS收录文章_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Opt & Elect, Chengdu 610209, Peoples R China
2.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 401122, Peoples R China

Recommended Citation:
Yuan, Guishan,Dong, Xiaochun,Deng, Qiling,et al. A BROADBAND SLAB LENS ANTENNA FORMED FROM GRADIENT REFRACTIVE INDEX METAMATERIALS COMPOSED OF CROSS- SHAPED CELLS[J]. MICROWAVE AND OPTICAL TECHNOLOGY LETTERS,2014,56(5):1124-1129.
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