一种低剖面宽带宽角扫描圆极化阵列天线设计  

A Design of Low Profile Wideband and Wide-Angle Scanning Circularly Polarized Antenna Array

作　　者：谢雨希 柏京[1] 叶君永[1] 朱余峰 XIE Yuxi;BAI Jing;YE Junyong;ZHU Yufeng(Southwest China Research Institute of Electronic Equipment,Chengdu 610036,China)

机构地区：[1]中国电子科技集团公司第二十九研究所,成都610036

出　　处：《电子信息对抗技术》2024年第3期62-67,共6页Electronic Information Warfare Technology

摘　　要：提出一种单馈点旋转偶极子圆极化天线,通过弯曲支撑金属板和优化其位置实现了低剖面单元天线设计(0.09个波长,中心频点)。利用紧凑型结构形式,保证结构强度并兼顾轻量化,比传统的低剖面微带天线重量更轻、口径更小、馈电网络更简单。采用两级子阵旋转组阵方式,实现±53°阵列扫描,轴比优于4 dB。仿真与测试结果对比分析表明,该天线具备良好的设计一致性,可为圆极化宽角扫描的需求领域提供潜在应用。A low profile single-feed circularly polarized rotated dipole antenna is proposed.By bending and optimizing the location of the vertical plate metals,the proposed antenna achieves a low profile of 0.09 wave-length(central frequency).The structure is appropriately designed to be compact,firm and light-weight.Compared to the traditional low profile micro-strip antenna,the weight is lighter,the bandwidth is wider and the feeding network is simpler.Two level rotating array is adopted to achieve±53°beam scanning and 4 dB axis ratio.The measuring and simulation results are in good agreement.It will provide potential applications in the field of circularly polarized wide-angle scanning array.

关 键 词：低剖面 宽带 宽角扫描 圆极化 

分 类 号：TN82[电子电信—信息与通信工程]