雷达波对孔缝腔体内复杂传输线耦合影响  

Coupling influences of the radar electromagnetic field on the complex transmission line in an aperture cavity

作　　者：方小星[1] 朱志宇[1] 张明新[1] 李阳[1] 

机构地区：[1]江苏科技大学电子信息学院,江苏镇江212003

出　　处：《西安电子科技大学学报》2016年第6期135-140,共6页Journal of Xidian University

基　　金：船舶预研支撑技术基金资助项目(13J3.3.5);江苏省普通高校研究生科研创新计划资助项目(KYLX15_1109)

摘　　要：针对雷达波与孔缝腔体内复杂传输线耦合计算问题,提出一种基于矩量法、并矢格林函数和传输线Π等效电路与Agrawal混合模型的计算方法.首先,用矩量法求得雷达天线在孔缝处的入射电磁场;然后,采用矩量法-并矢格林函数混合算法计算孔缝处等效磁流,并求得腔体内的电磁场;运用所得电磁场与传输线混合模型计算传输线的负载电流响应.通过仿真传输线与BLT方程等计算结果比较,验证了此方法是有效的.Aimed at coupling calculation for radar waves and aperture cavity complex TL, a calculation method is proposed based on the MoM, the dyadic Green＇s function （GF） and mixing of the II model and Agrawal model. First, the incident electromagnetic field at the aperture of the radar antenna can be obtained by the MoM. Then the MoM-GF hybrid algorithm is used to obtain the equivalent magnetic current in the aperture and the electromagnetic field inside the cavity. Finally, the TL load current response can be calculated with the result of electromagnetic fields and the hybrid TL model of the equivalent II circuit and Agrawal. Throuth TL simulation results by the BLT equation this method can be validated effectively.

关 键 词：电磁耦合 孔缝腔体 传输线理论 矩量法 并矢格林函数 

分 类 号：TN820[电子电信—信息与通信工程] O441.4[理学—电磁学]