Two-Bit Planar Coding Reconfigurable Array Antenna for Dual-Polarized Wide-Angle Beam Scanning

被引:4
作者
Li, Shang-Yang [1 ,2 ]
Wang, Yan [3 ]
Xu, Feng [3 ]
机构
[1] Fudan Univ, Sch Informat Sci & Technol, Key Lab Informat Sci Electromagnet Waves, Shanghai 200433, Peoples R China
[2] Chinese Acad Sci, Aerosp Informat Res Inst, Natl Key Lab Microwave Imaging Technol, Beijing 100190, Peoples R China
[3] Fudan Univ, Sch Informat Sci & Technol, Key Lab Informat Sci Electromagnet Waves, Shanghai 200433, Peoples R China
基金
中国国家自然科学基金; 上海市自然科学基金;
关键词
Beam scanning; dual-polarized; fixed phase delay (FPD); low sidelobe; two bits; wide angle; TRANSMITARRAY; PHASE;
D O I
10.1109/TAP.2023.3285365
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
In this communication, a dual-polarized coding reconfigurable array (coding RA) antenna with the characteristics of being low-profile, low-cost, relatively low-sidelobe, and wide-angle beam scanning is proposed. By exciting the array via different feeding ports, horizontal- and vertical-polarized scanning beams can be generated. By adjusting the p-i-n diodes integrated on the feeding lines, the element presents four different phase states of -270 degrees, -180 degrees, -90 degrees, and 0 degrees, labeled as "00," "01," "10," and "11." An eight elements array antenna is designed based on the element. With the introduction of elaborately designed two groups of fixed phase delay, the sidelobe level (SLL) at different scanning angles can be effectively reduced in two polarized directions and the gain is also improved. The simulated and measured results of the fabricated prototype indicate that dual-polarized +/- 60 degrees wide-angle beam scanning, moderate array gain, relatively low SLL, and low cross-polarization level can be achieved. The proposed array antenna, which according to the authors' best knowledge, is the first dual linear-polarized wide-angle beam scanning coding RA without the feeding horn, might have good applications in the base station and fully polarimetric radar.
引用
收藏
页码:7667 / 7672
页数:6
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