Design of Circularly Polarized Beam Scanning Reflectarray Antenna at 100 GHz Based on Liquid Crystals

被引：0
|
作者：
Zhao, Chuan-Hong [1 ]
Han, JianQiao [1 ]
Lv, JianFeng [1 ]
Meng, Fan-Yi [1 ]
Wu, Qun [1 ]
Li, WeiNan [2 ]
机构：
[1] Harbin Inst Technol, Dept Microwave Engn, Harbin, Peoples R China
[2] Dept Beijing Inst Control & Elect Technol, Beijing, Peoples R China
来源：
2019 CROSS STRAIT QUAD-REGIONAL RADIO SCIENCE AND WIRELESS TECHNOLOGY CONFERENCE (CSQRWC) | 2019年
关键词：
liquid crystals; beam scanning reflectarray; circular polarization (CP); polarization conversion;
D O I：
10.1109/csqrwc.2019.8799132
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A liquid crystal (LC) based circularly polarized (CP) beam scanning reflectarray antenna is designed operating within the frequency range from 98 to 102 GHz. The antenna consists of a liquid crystal reflectarray and a polarization converter. The unit cell structure of the reflectarray is made up of three parallel dipoles put on a LC substrate. The polarization converter is placed above the reflectarray to achieve the circular polarization. The simulated results show that the proposed beam scanning CP reflectarray antenna realizes beam scanning capabilities between -20 degrees and -10 degrees while the gain reaches up to more than 13dB and the axial ratio keeps less than 3dB.
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页数：3
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