摘要
基于FDTD结合口径场法分析了一种结构新颖的亚毫米波扫描天线,包括会聚透镜、聚束引导器和极化扭转天线。对引导器的性能参数进行FDTD分析和优化,加入天线部分对整个系统进行FDTD计算,结合口径场法计算了天线的远区场,得到了良好的性能,可以应用于准光扫描天线系统中。
Based on FDTD and the aperture field method, a novel scanning antenna structure which is applied to sub-millimeter wave band has been developed. It is composed of convex lens, lens guider and twist-reflect antenna. Firstly, the lens guider is analysed and optimized by means of FDTD, then the antenna part is added and the total system is analysed. Far field performance is computed using aperture field method. Good performance is concluded, and this structure can be applied to quasi-optical sanning antenna systems.
出处
《电波科学学报》
EI
CSCD
北大核心
2010年第4期725-727,814,共4页
Chinese Journal of Radio Science
基金
国家创新群体基金(NSFC-60621002)
国家重点实验室创新基金支持项目
关键词
亚毫米波
扩展半球透镜
FDTD
逆卡塞格伦天线
扫描天线
sub-millimeter waves
extend-hemisphere lens
FDTD
inverse Cassegrain antenna
scanning antenna
