摘要
分析了微带圆极化天线的工作原理,提出了一种双层电磁耦合型馈电结构以取代传统的馈电结构.通过优化L型微带馈电形状、馈线与辐射单元间的间距以及馈线阻抗匹配等措施,实现了一种具有宽角轴比特性的微带圆极化天线,并对其样机的增益、轴比和电压驻波比进行了测试,测试结果表明天线性能达到了预期研究目标.
The theory of circularly polarized microstrip antenna is analyzed.A double structure with electromagnetic coupling feed is proposed to replace the traditional feed structure.By optimizing the L microstrip feed shape,the distance between feeder and radiation unit and the feeder impedance matching,a circularity polarized antenna prototype with wide angle axial ratio is manufactured.The gain,axial ratio and voltage standing wave ratio(VSWR)of the prototype are tested,and the results achieve the predicted goal.
出处
《电波科学学报》
EI
CSCD
北大核心
2015年第3期560-564,共5页
Chinese Journal of Radio Science
关键词
轴比
圆极化
微带天线
axial ratio
circularly polarization
microstrip antenna
