- 易迪拓培训,专注于微波、射频、天线设计工程师的培养
FEKO中仿真天线罩的问题
你的天线罩如果相比工作波长很大,再加生是多层结构,采用FEKO全波算法就不太可行,未知量太大。
如果你的天线相比天线罩较小,采用几何光学求解是最可行的。
楼上正解
4年前,我也纠结过这个问题,最终放弃了feko,自己编程计算,我用的是物理光学法。计算结果来看,对于电大尺寸的天线罩,精度尚可。
一年之后我也在纠结同样的问题,用FEKO仿真楼上几位大牛有解决方案没有啊!
現階段
若需用全波算法. 硬做時. 感覺還是得靠強大的計算機.
几何光学求解. 則不需要
附上官網上的講法供參考
http://www.feko.info/applications/radome
Radomes are generally electrically large structures, often consisting of more than one layer of dielectric that is spaced closely. The simulation of such structures stress computational resources greatly, making the choice of simulation method extremely important.
FEKO provides the following simulation techniques that were designed specifically for electrically large structures:
Multilevel Fast Multipole Method (MLFMM), best suited to radomes with few dielectric layers.
Method of Moments / Physical Optics (MoM/PO) hybridisation, best suited to high frequency simulations.
Finite Element Method / Method of Moments (FEM/MoM) hybridisation, which is applicable to arbitrarily inhomogeneous dielectrics.
Finite Element Method / Multilevel Fast Multipole Method (FEM/MLFMM) hybridisation, which is applicable to arbitrarily inhomogeneous dielectrics which are electrically large themselves or which are located in close proximity to electrically large metallic structures.
Method of Moments / Geometric Optics (MoM/GO) hybridisation, combining detailed radiating element modelling with ray-launching technology for large complex dielectric structures.
这种规模的问题,我感觉也只能用GO光学了,可以先算算试试,
好吧,我试试看,刚刚学啊
我也在纠结这个问题,关于你说的自己用物理光学法编程计算,能给点指导吗?再有就是你的程序能不能就算介质金属复合的天线罩?
小编也用FEKO仿真过天线罩么?这种方法是否行不通呢?我现在也想用FEKO仿真,可是多层天线罩的问题还无法解决,不知小编有无见解,小编是选用物理光学编程算法来分析天线罩透波性能的啊?
最近也在纠结这个问题,看看大家怎么说