[建模]CST MWS中crosstalk和被干扰微带的的接收功率

最后 添加完整地面没必要，直接把那个边界设成perfect E就OK啦 ^j1iCL!  
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but I could't find the setting concerning "perfect E".....ahhhhhhh

既然别人已经告诉你“边界”了，为什么不用"boundary"关键字去Help里面搜索呢？ z
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请确定你已经熟悉CST MWS的最基本操作。 zOYG`:/'  
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CST MWS帮助文件《Boundary Conditions - Boundaries》。

20log10(|S31|) kE1k@h#/  
  P3 represents the power that we recieve in Port3 H^g&e$d0  
  P1 represents the power that we receive in port1 Vr #o]v  
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    The relation between P3 and P1, is [!4V_yOb  
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S31  (dB)  = 20 log10(|S31|) =20 log10(P3/P1)= 20 log10[(P3/1000)* (1000/P1)]= P3(dBm)- P1 (dBm) @Suww@<  
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S31  (dB)   is equivalent to  Near End Crosstalk ,we  can define the value of P1(dBm) ,and we take the S 31 (dB)   into use  according to the result of simulation ,now I want the final result ___ P3(dBm)… !ozHS_  

我可以猜出你想表达的意思，不过你的文字表述有歧义，而且论述过程太不专业。如果我是你的导师的话这个小报告的成绩只能是：fail。 MZ>Q Rf  
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"P1 represents the power that we receive in port1"，端口1是激励端口，所以这个"receive"到底是incidented power还是reflected power？别人读你的文字会挑战你的。 `{Fz  
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我已经说过了，输入功率都是归一化的。当输入功率归一化为1毫瓦的时候，"P1 (dBm)"这一项是0 dBm，我不晓得不停纠结于这个事情的目的是什么？ BVS SO's  
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只要输入功率是1毫瓦，测得的S31 (dBm)不就是你想要的数值吗？

aha,I 've found a easy way to create a ground plane below the substrate,the first step is to select the bottom face ,once the face is colored with the red dots,the second step is to go in the  menu   “object->face healing tool->shape from picked face”. This will automatically create a new object below the substrate The final step is to specify the material of this object,In my project,I 've choosen 'PEC'... .I%B$eH  
Have a good night,,,:) T#HF!GH]  
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Yeah,there's several mistakes about my expression,thanks for giving your suggestion.I took the lesson of S parameter in France,and I just translated the French methods of caculating Sparameter in English.I will review the notes of Sparameter,and let say tomorrow morning Fzz9BEw(i  

it's so strange that there are two ways to create a "Ground Plane"(GP)... > Qh#pn*  
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as you said, "object->face healing tool->shape from picked face" can create the GP. but i always use "object->Basic Shapes->shape from picked face". i dont know if they are different.