3mm铁氧体介质波导的Galerkin算法数值分析  

Numerical Analysis of 3 mm Ferrite Dielectric Waveguide Using Galerkin Method

作　　者：刘明宇[1] 张江华[2] 

机构地区：[1]西安交通大学,陕西西安710049 [2]西安电子工程研究所,陕西西安710100

出　　处：《兵工学报》2007年第3期296-300,共5页Acta Armamentarii

摘　　要：为了研制远程导弹预警雷达需要采用毫米波相控阵天线技术,而大功率3 mm移相器则是研制这种雷达的瓶颈技术之一。为此,考虑采用铁氧体介质波导结构研制3 mm移相器,与常规铁氧体移相器设计相比,这种结构可以使移相器横向截面积增大到4倍,大大降低了实现难度,同时减小了插入损耗。这里采用矢量基函数的Galerkin算法解决了旋磁介质波导本征模计算问题,克服了有限元法难以剔除虚假模式的困难。最后给出了94 GHz铁氧体移相器的场型分布、功率能流密度分布。To develop long-range missile early warning radar, MMW phased array antenna is needed. The phase shifter （PS） with high power capacity and low loss is an essential and key component for the radar. Here, the phase shifter adopted ferrite dielectric waveguide is considered, the PS cross section of the new configuration can enlarge to 4 times of that of the conventional, which facilitates the engineering realization. A novel vector base function in Galerkin method was proposed in calculating the eigenvalue of ferrite dielectric waveguide. The field distribution of main mode, power flux density distribution and efficiency of 94 GHz difference phase shift were also given.

关 键 词：雷达工程 铁氧体介质波导 矢量基函数 GALERKIN法 

分 类 号：TN623[电子电信—电路与系统]