南京理工大学学报（自然科学版）2024，Vol.48Issue(1)：88-95,8.DOI:10.14177/j.cnki.32-1397n.2024.48.01.009
基于脊间隙波导的低副瓣多波束阵列天线设计
Design of low sidelobe multibeam array antenna based on ridge gap waveguide
摘要
Abstract
In order to overcome the problems of high loss,low efficiency and high sidelobe level of millimeter-wave multibeam array antenna,a design method of low sidelobe multibeam array antenna based on gap waveguide technology is proposed in this paper.Firstly,a double-layer multibeam feed network topology based on Butler matrix is designed.The four output ports of the traditional Butler matrix are connected to the unequal power dividers,which are expanded to eight output ports to realize the redistribution of output power,thereby achieving the purpose of low sidelobe design.Then,the double-layer and single-layer directional couplers,crossovers and unequal power dividers based on ridge gap waveguide are designed and the whole low-sidelobe multibeam array antenna is realized.Finally,the antenna is manufactured and measured.The measured results are in good agreement with the simulation results,and the sidelobe level is effectively reduced,which verifies the performance of the proposed low sidelobe multibeam array antenna.关键词
毫米波/多波束/低副瓣/脊间隙波导/阵列天线Key words
millimeter wave/multibeam/low sidelobe/ridge gap waveguide/array antenna分类
信息技术与安全科学引用本文复制引用
权钰,李想,王昊,陶诗飞,曹建银,丁振东..基于脊间隙波导的低副瓣多波束阵列天线设计[J].南京理工大学学报（自然科学版）,2024,48(1):88-95,8.基金项目
国家重点研发计划(2021YFB3502500) （2021YFB3502500）
