1-D Wide-Angle Beam-Scanning Linear Phased Array With Enhanced Gain by Using 3-D Printed Dielectric Slab Superstrate

被引:2
|
作者
Yu, Yin-Hua [1 ]
Zong, Zhi-Yuan [1 ]
Wu, Wen [1 ]
Chen, Qiaoyu [1 ]
Wang, Min [1 ]
Fang, Da-Gang [1 ]
机构
[1] Nanjing Univ Sci & Technol, Ministerial Key Lab JGMT, Nanjing 210094, Peoples R China
来源
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2021年 / 20卷 / 05期
基金
中国国家自然科学基金;
关键词
Phased arrays; Gain; Linear antenna arrays; Microstrip antenna arrays; Antenna radiation patterns; Antenna measurements; Dielectrics; Beam scanning; dielectric slab superstrate (DSS); gain enhancement; phased array; ELECTRONICALLY RECONFIGURABLE TRANSMITARRAY; LENS ANTENNA; RESONATOR ANTENNA; BAND;
D O I
10.1109/LAWP.2021.3060131
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 1-D wide-angle beam-scanning linear phased array with enhanced gain by using dielectric slab superstrate (DSS) is presented. In this scenario, the beams of array elements in the scanning plane should be wide enough and that in the orthogonal plane should be as narrow as possible. Different from the existing DSS technology, the DSS in this letter is used to satisfy the requirements of the beams in both planes. The parameters of the DSS and its position are optimized by setting the narrowest beam in the orthogonal plane as the objective function under the constraint of the specified wide beam in the scanning plane. To validate the proposed scheme, an eight-element DSS linear phased array operating at 10 GHz was designed, fabricated, and measured. Using the simple measure, the measured 3.5 dB gain enhancement in the scanning range of +/- 43 degrees has been achieved with the aperture efficiency of 98%, the low profile of 1.39 wavelength, and the acceptable side-lobe levels (SLL) of better than -8.7 dB.
引用
收藏
页码:688 / 692
页数:5
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