期刊
CHINESE PHYSICS B
卷 25, 期 12, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/1674-1056/25/12/128102
关键词
circular-polarization converter; micro-split Jerusalem-cross metasurface; ultrathin; ultra-wideband
资金
- National Natural Science Foundation of China [61461016, 61661012]
- Natural Science Foundation of Guangxi Zhuang Autonomous Region, China [2014GXNSFAA118366, 2014GXNSFAA118283, 2015jjBB7002]
- Innovation Project of Graduate Education of Guilin University of Electronic Technology, China [2016YJCX82]
An ultrathin micro-split Jerusalem-cross metasurface is proposed in this paper, which can efficiently convert the linear polarization of electromagnetic (EM) wave into the circular polarization in ultra-wideband. By symmetrically employing two micro-splits on the horizontal arm (in the x direction) of the Jerusalem-cross structure, the bandwidth of the proposed device is significantly extended. Both simulated and experimental results show that the proposed metasurface is able to convert linearly polarized waves into circularly polarized waves in a frequency range from 12.4 GHz to 21 GHz, with an axis ratio better than 1 dB. The simulated results also show that such a broadband and high-performance are maintained over a wide range of incident angle. The presented polarization converter can be used in a number of areas, such as spectroscopy and wireless communications.
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