同轴馈电长度的相关问题

   我们知道才CST微波工作室中端口区在纵向必须有至少三个网格是均匀的。所以在进行同轴馈电的时候馈线的长度是有要求的。在仿真中如果端口设置为如下情况则可能出错：  
 
如果改成如下形式  
      
则仿真会成功  
难道只能这样吗？大家是怎么处理这个问题的，新手上路，希望大家都发表意见！

网友回复:

第一幅图应该是

网友回复:

According to your "first" figure, you should increase the mesh density to force the system generating at least three mesh lines at the waveguide port direction.

网友回复:

我们知道才CST微波工作室中端口区在纵向必须有至少三个网格是均匀的。所以在进行同轴馈电的时候馈线的长度是有要求的。？ 
同轴线设置一定长度就可以了，如果出现提示在纵向必须有没有三个网格是均匀的。增加同轴线长度就可以了

网友回复:

 
I guess he want to know if the simulation can be enabled with that short length coaxial feed line.

网友回复:

Yes,you get  it!  I  don't want such a long tail  attached  to my  design! Thank you all for the answer!

网友回复:

You're welcome. Did you solve you problem? If yes, how did you do that, by increase the mesh density?

网友回复:

try to increase the mesh density manually. if increased by auto, it may not exist 3 cells in same dimension,without which it is not able to simulate.

网友回复:

Yes , I  increased   mesh density partly by  myselves  as showed below 
 
Am  I  right?

网友回复:

Perfect! And make sure you only refine the mesh lines at the desired direction. 
 
Then what's the result? Has the error message gone?

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