中国物理B ›› 2023, Vol. 32 ›› Issue (6): 64210-064210.doi: 10.1088/1674-1056/ac8e9e
所属专题： SPECIAL TOPIC — Celebrating the 100th Anniversary of Physics Discipline of Xiamen University
Broadband and wide-angle plane focal surface Luneburg lens
Jue Li(李珏)1,2, Yangyang Zhou(周杨阳)1,2,†, and Huanyang Chen(陈焕阳)1,2,‡
- 1 Institute of Electromagnetics and Acoustics and Department of Physics, College of Physical Science and Technology, Xiamen University, Xiamen 361005, China;
2 Fujian Engineering Research Center for EDA, Fujian Provincial Key Laboratory of Electromagnetic Wave Science and Detection Technology, Xiamen Key Laboratory of Multiphysics Electronic Information, Xiamen University, Xiamen 361005, China
Broadband and wide-angle plane focal surface Luneburg lens
Jue Li(李珏)1,2, Yangyang Zhou(周杨阳)1,2,†, and Huanyang Chen(陈焕阳)1,2,‡
- 1 Institute of Electromagnetics and Acoustics and Department of Physics, College of Physical Science and Technology, Xiamen University, Xiamen 361005, China;
2 Fujian Engineering Research Center for EDA, Fujian Provincial Key Laboratory of Electromagnetic Wave Science and Detection Technology, Xiamen Key Laboratory of Multiphysics Electronic Information, Xiamen University, Xiamen 361005, China
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.
中图分类号: (Wave optics)
- 42.25.-p