摘要
利用口径耦合理论、反相馈电技术和单层微带贴片结构设计出一种Ku波段宽带双频双极化微带天线阵。利用电磁仿真软件对天线阵的结构参数进行了仿真和优化。实测结果表明:水平极化端口在11.59～13.02GHz频率范围内驻波比小于1.5,相对阻抗带宽为11.62%;垂直极化端口在13.58～14.55GHz频率范围内驻波比小于1.5,相对阻抗带宽为6.9%,双极化端口隔离度小于-33dB,两个波段的最大增益分别为21.8dB和20.4dB,与仿真结果一致。
In this paper,a broadband dual-frequency and dual-polarized microstrip antenna array at Ku-band is described,which is based on aperture-coupled theory,anti-phase feeding technique and single-layer microstrip patch structure. The parameters of the antenna array are simulated and optimized by the simulation software. The measured results show that the relative impedance bandwidth is 11.62% from 11.59 GHz to 13.02 GHz for horizontal polarized channel and 6.9% from 13.58 GHz to 14.55 GHz for vertical polarized ...
出处
《电波科学学报》
EI
CSCD
北大核心
2010年第1期146-150,共5页
Chinese Journal of Radio Science
基金
广西研究生教育创新基金资助项目(2009105950809M09)
关键词
宽带
双频双极化
口径耦合
微带天线阵
broadband
dual-frequency and dual-polarized
aperture-coupled
microstrip array antenna
