求问CST MWS系统部分尺寸差别太大时如何处理？

网友回复:

或者如何设计一个球面波源，跳过天线的模拟过程

网友回复:

试试看subgridding吧。

网友回复:

1dm？1cm？可以直接用离散端口代替天线

网友回复:

我按照教程进行了局部网格的划分，选了subgridding，但是出了错如下，怎么查在哪儿出了错呀： 
Subgrid mesh generation 
Local mesh settings overlap for the shapes "single dipole/PEC:Driven Element" and "component1:solid2". 
Using settings of shape "single dipole/PEC:Driven Element" within overlaping areas 
Starting adaptive port meshing. 
Mode calculation for port 2: 
At least one propagating mode at port 2 is not considered in the time domain calculation! (At least one mode shares the same beta with considered mode(s) -> degeneration).It might be better to increase the number of modes at port 2. More... 
Pass 1 successfully completed. 
Adaptive port meshing finished. 
Matrix computation (PBA) 
Hexahedral mesher terminated abnormally. 
Error in calculating solver matrix 
Solver run aborted. 
2 warnings occurred.

网友回复:

做了个模型，其中有根天线尺寸特别小，划分了局部网格，选了subgridding，出了错如下，可能是哪里出了错啊？ 
 
 
 
Subgrid mesh generation  
Local mesh settings overlap for the shapes "single dipole/PEC:Driven Element" and "component1:solid2".  
Using settings of shape "single dipole/PEC:Driven Element" within overlaping areas  
Starting adaptive port meshing.  
Mode calculation for port 2:  
At least one propagating mode at port 2 is not considered in the time domain calculation! (At least one mode shares the same beta with considered mode(s) -> degeneration).It might be better to increase the number of modes at port 2. More...  
Pass 1 successfully completed.  
Adaptive port meshing finished.  
Matrix computation (PBA)  
Hexahedral mesher terminated abnormally.  
Error in calculating solver matrix  
Solver run aborted.  
2 warnings occurred. 

网友回复:

上传模型，请大神们指导，跪谢！ 
 

网友回复:

为了大神们看的方便，再上传一个有结果的： 
 

网友回复:

我的模型在这里 能不能帮忙看下错在哪儿，多谢多谢！ 1

网友回复:

直接在1mX1m的面上加离散端口吗？出来的可以近似是球面波？

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