Substrate integrated waveguide-slot wide-angle scanning aperiodic phased array with low side-lobe levels

被引：3
作者：
Sun, Bin-Feng [1 ]
Ding, Xiao [1 ]
Cheng, You-Feng [2 ]
Shao, Wei [1 ]
机构：
[1] Univ Elect Sci & Technol China, Inst Appl Phys, Chengdu 510054, Sichuan, Peoples R China
[2] Southwest Jiaotong Univ, Inst Electromagnet, Chengdu, Sichuan, Peoples R China
来源：
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2020年 / 62卷 / 01期
基金：
中国国家自然科学基金;
关键词：
aperiodic array; genetic algorithm; phased array; substrate integrated waveguide; wide-angle scanning; ANTENNA;
D O I：
10.1002/mop.31989
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：
An aperiodic substrate integrated waveguide (SIW) wide-angle scanning phased array with low side-lobe levels (SLLs) is presented. The proposed C-band array has 16 SIW-slot elements with aperiodic distribution. The TE10 mode of each element is excited to obtain a wide beamwidth for wide-angle scanning potential. In addition, a genetic algorithm is used to optimize the placement of the elements to reduce the scanning SLLs of the phased array, especially in wide-angle scanning areas. The proposed approach provides superior performance of SLLs < -11.5 dB, particularly small gain fluctuation (+/- 1.5 dB) when scanning form -68 degrees to +68 degrees. Compared with the same aperture uniform array, the scanning angle and the SLLs of the proposed array have been significantly improved.
引用
收藏
页码：210 / 216
页数：7
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