S波段宽带低交叉极化印刷偶极子阵列天线的设计  

Design of an S-band broadband low cross-polarization printed dipole array antenna

作　　者：周占伟[1] 杨仕文[1] 聂在平[1] 

机构地区：[1]电子科技大学电子工程学院

出　　处：《电波科学学报》2008年第2期280-283,共4页Chinese Journal of Radio Science

基　　金：国家自然科学基金资助项目(60571023);教育部新世纪优秀人才支持计划(NCET-06-0809);电子科技大学创新团队支持计划

摘　　要：设计出一种新型宽带低交叉极化印刷偶极子天线,该天线采用双层平面Balun偶极子结构,不仅具有平面Balun偶极子的宽频带特性,同时也降低了天线交叉极化电平。使用该天线单元设计制作S波段16元线阵。测试结果表明,阵列天线工作带宽达到50%,交叉极化电平小于-43dB。实验结果验证了该天线阵的宽带低交叉极化特性。A novel broadband printed dipole antenna with low cross-polarization is proposed in this paper. The antenna employs a double-layered printed dipole with integrated balun structure, which retains the broadband characteristics while reducing the cross-polarization level. An S-band 16-element printed dipole array antenna is then formed, and the measured results indicate that the bandwidth of the array is up to 50 ~, while the cross-polarization level is less than -- 43 dB. Measurement resuits verified the broadband and low cross-polarization properties of the antenna array.

关 键 词：印刷偶极子 宽带 低交叉极化 阵列天线 

分 类 号：O441[理学—电磁学]