高增益低副瓣圆极化微带天线阵的研制  

A circular-polarization microstrip array with high-gain and low-side lobe

作　　者：张福顺[1] 商远波[1] 张涛[1] 黄迎春[1] 焦永昌[1] 

机构地区：[1]西安电子科技大学天线与微波技术国家重点实验室,陕西西安710071

出　　处：《电波科学学报》2008年第3期572-575,共4页Chinese Journal of Radio Science

摘　　要：以工作频率为4.14 GHz,5单元圆极化微带天线阵为研究对象,研制出了与馈电网络为一体、具有圆极化特性的微带天线阵。利用不等幅馈电网络实现了天线方向图的低副瓣,采用枝节匹配技术解决了圆极化微带天线阵与馈电网络为一体的工程实现较为困难这一技术难题。在此基础上,研制了天线阵实验样机,并对实验样机进行了测量,实验结果表明;该天线阵具有良好的圆极化特性和低副瓣特性,进而说明了该方法是有效可行的。A circular-polarization microstrip array incorporated the feed network with 5 elements working at 4. 14 GHz are analyzed in this paper. The low side-lobelevel of pattern for the array is achieved by the feed network with ununiform amplitude, and the integrative problem for the radiator elements and the feed network which is difficult to realize in engineering is solved by using the branch match technique. The experiment array is fabricated and its electric parameters are measured. The measured results show that the antenna has good performance.

关 键 词：微带天线阵 圆极化 低副瓣 实验样机 

分 类 号：TN821[电子电信—信息与通信工程]