A Low-Profile 2-D Beam-Scanning Circularly Polarized Antenna Combining Reflectarray and Transmitarray

被引：4
作者：
Lei, Haoyu [1 ]
Liu, Ying [1 ]
Jia, Yongtao [1 ]
Zhong, Yichen [1 ]
Liu, Zhong-Xun [1 ]
机构：
[1] Xidian Univ, Natl Key Lab Radar Detect & Sensing, Xian 710071, Peoples R China
来源：
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2024年 / 23卷 / 12期
基金：
中国国家自然科学基金;
关键词：
Transmitting antennas; Reflector antennas; Reflection; Antenna feeds; Gain; Antennas; Phased arrays; Beam scanning; circular polarization; reflectarray; Risley-prism antenna; transmitarray; COMMUNICATION; SYSTEM; ARRAY;
D O I：
10.1109/LAWP.2024.3456814
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：
Traditional Risley-prism antennas are usually based on planar transmitarray antennas, utilizing two or three layers of rotatable transmitarrays to achieve 2-D beam scanning. To reduce the number of transmitarray layers, a novel Risley-prism antenna that combines a reflectarray and a transmitarray is proposed. By simultaneously controlling the transmission phase and polarization state of the waves, the profile can be reduced to only half that of a reflectarray. Additionally, by rotating both the transmitarray and the reflectarray, the circularly polarized beam-scanning capability in a 2-D plane is achieved. Moreover, the proposed antenna features a wide scanning angle, low profile, and compact structure, making it an excellent candidate for wireless communication systems.
引用
收藏
页码：4558 / 4562
页数：5
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