Broadband and wide-angle plane focal surface Luneburg lens

被引:1
|
作者
Li, Jue [1 ,2 ,3 ]
Zhou, Yangyang [1 ,2 ,3 ]
Chen, Huanyang [1 ,2 ,3 ]
机构
[1] Xiamen Univ, Inst Electromagnet & Acoust, Coll Phys Sci & Technol, Xiamen 361005, Peoples R China
[2] Xiamen Univ, Coll Phys Sci & Technol, Dept Phys, Xiamen 361005, Peoples R China
[3] Xiamen Univ, Fujian Engn Res Ctr EDA, Xiamen Key Lab Multiphys Elect Informat, Fujian Prov Key Lab Electromagnet Wave Sci & Detec, Xiamen 361005, Peoples R China
基金
中国国家自然科学基金;
关键词
plane focal surface Luneburg lens (PFSLL); focusing efficiency; concentration ratio of collection of energy; CONCENTRATING SOLAR POWER; COMPOUND PARABOLIC CONCENTRATOR; TRANSFORMATION OPTICS; PERFORMANCE; COLLECTOR; DESIGN; SYSTEM; GENERATION; RADIATION;
D O I
10.1088/1674-1056/ac8e9e
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The energy crisis has aroused widespread concern, and the reform of energy structure is imminent. In the future, the energy structure will be dominated by the solar energy and other renewable energy sources. The solar concentrating technology as a promising method has been widely studied for collecting solar energy. However, the previous solar concentrating technologies suffer from some drawbacks, such as low focusing efficiency and large concentrating size. The Luneburg lens with highly efficient aberration-free focusing provides a new route for solar/energy concentrator. In this work, we designed a plane focal surface Luneburg lens (PFSLL) by transformation optics (TO). The PFSLL provides a relatively high focusing efficiency and concentration ratio of collection of energy. At the same time, it circumvents the disadvantage of curve surface of the classical Luneburg lens in device integration. Based on the reciprocity of electromagnetic waves, the PFSLL can also be applied to the antenna field to achieve broadband wide-angle scanning and highly directional radiation.
引用
收藏
页数:5
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