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HFSS矩形波導建模時引入激勵時出錯

如題,參數如下:  
                        unit :       mm  
                       position 0,0,0  
                         X:   a                                      10  
                         Y:   c                                       20  
                         Z:   h                                        5  
                    
 
                          邊界條件為:與XY平面,YZ平面分別平行的四個平面設為 Perfect  E  
                         然后設激勵時,選擇與XZ平面平行的其中一個平面設為:Wave port   
                         時,teminal line為undefined,就出錯了  
                         錯誤:length  of  port lines must be greater than zero  
   
                       各位前輩,請問哪里出錯了呢？  
 
                        模型已經傳上來了,驗證是出現兩個waring:3D Model    ;Analysis Setup 
 
  HFSSDesign1 
    [warning] Model dimensions are beyond the range of 1e-006 to 10000 (2:56 上午  一月 11, 2009) 
    [warning] Solution Setup 'Setup1': Given the specified frequency and model dimensions,  an extremely large mesh will be required to produce an accurate solution.  Your model and/or frequency units may be set incorrectly. (2:56 上午  一月 11, 2009) 
    
應該怎么改才對啊？

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