一种高增益低副瓣的多圈圆阵设计  

A High Gain and Low Side-Lobe Multi-Circle Circular Antenna Array

作　　者：叶君永 刘颖 李智 程鹏 YE Jun-yong;LIU Ying;LI Zhi;CHENG Peng(Science and Techonology on Electronic Information Control Laboraoty,Chengdu 610036,China)

机构地区：[1]电子信息控制重点实验室,成都610036

出　　处：《电子信息对抗技术》2019年第1期61-64,共4页Electronic Information Warfare Technology

摘　　要：研究了宽带多圈圆阵在电子侦察二维测向中的应用性能,分析了多圈圆阵天线增益和主副瓣比的性能。基于对数螺旋天线为阵元,优化了一个高增益低副瓣的72元多圈圆阵,并对实物进行测试验证,测试结果与仿真结果吻合较好。测试结果表明:构建的圆形阵列工作于3:1带宽,在不进行幅度加权的情况下,实现了±45°扫描时全频段内的主副瓣比大于10dB,增益大于18dBi。Application performance of multi-circle circular array is studied in two-dimensional direction-finding for electronic detection.The effects of different array configurations on the antenna gain and the main-side lobe ratio are analyzed.Based on the conical spiral antenna,a high gain and low side-lobe multi-circle circular array antenna of 72 antenna element is optimized and designed,the test results are in good agreement with the simulation results.The results show that the constructed circular array works at 3:1 bandwidth,and realize that the main-side lobe ratio is bigger than 10dB,the gain is bigger than 18dBi in±45°scan without amplitude weighting.

关 键 词：二维测向 多圈圆阵 低副瓣 

分 类 号：TN821.8[电子电信—信息与通信工程]