同軸饋電長度的相關問題

我們知道才CST微波工作室中端口區(qū)在縱向必須有至少三個網(wǎng)格是均勻的。所以在進行同軸饋電的時候饋線的長度是有要求的。在仿真中如果端口設置為如下情況則可能出錯：

如果改成如下形式

則仿真會成功
難道只能這樣嗎？大家是怎么處理這個問題的，新手上路，希望大家都發(fā)表意見！

第一幅圖應該是

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.

我們知道才CST微波工作室中端口區(qū)在縱向必須有至少三個網(wǎng)格是均勻的。所以在進行同軸饋電的時候饋線的長度是有要求的。？
同軸線設置一定長度就可以了，如果出現(xiàn)提示在縱向必須有沒有三個網(wǎng)格是均勻的。增加同軸線長度就可以了

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

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

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

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.

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

Am I right?

Perfect! And make sure you only refine the mesh lines at the desired direction.

Then what's the result? Has the error message gone?