求教：HFSS里设计 共面线结构怎么样放置过孔？

如题，设计一单端的共面线结构，传输线两侧需放置过孔将上下两层地平面连接过来。我直接放了一个圆柱在上下两层之间，出现提示如下：
    [error] Objects "Ground" and "Cylinder1" intersect. (2:26 ÏÂÎç  ¶þÔÂ 14, 2008)
    [error] Objects "Ground" and "Cylinder1_1" intersect. (2:26 ÏÂÎç  ¶þÔÂ 14, 2008)
    [error] Objects "Ground" and "Cylinder1_2" intersect. (2:26 ÏÂÎç  ¶þÔÂ 14, 2008)
    [error] Objects "Ground" and "Cylinder1_3" intersect. (2:26 ÏÂÎç  ¶þÔÂ 14, 2008)
    [error] Objects "Ground" and "Cylinder1_4" intersect. (2:26 ÏÂÎç  ¶þÔÂ 14, 2008)
    [error] Objects "Ground" and "Cylinder1_4_1" intersect. (2:26 ÏÂÎç  ¶þÔÂ 14, 2008)
    [error] Objects "Ground" and "Cylinder1_4_2" intersect. (2:26 ÏÂÎç  ¶þÔÂ 14, 2008)
    [error] Objects "Ground" and "Cylinder1_4_3" intersect. (2:26 ÏÂÎç  ¶þÔÂ 14, 2008)
    [error] Objects "Ground" and "Cylinder1_4_4" intersect. (2:26 ÏÂÎç  ¶þÔÂ 14, 2008)
    [error] Objects "Ground" and "Cylinder1_4_5" intersect. (2:26 ÏÂÎç  ¶þÔÂ 14, 2008)
    [error] Objects "Ground" and "Cylinder1_5" intersect. (2:26 ÏÂÎç  ¶þÔÂ 14, 2008)
    [error] Objects "Ground" and "Cylinder1_1_1" intersect. (2:26 ÏÂÎç  ¶þÔÂ 14, 2008)
    [error] Objects "Ground" and "Cylinder1_1_2" intersect. (2:26 ÏÂÎç  ¶þÔÂ 14, 2008)
    [error] Objects "Ground" and "Cylinder1_1_3" intersect. (2:26 ÏÂÎç  ¶þÔÂ 14, 2008)
    [error] Objects "Ground" and "Cylinder1_1_4" intersect. (2:26 ÏÂÎç  ¶þÔÂ 14, 2008)
    [error] Objects "Ground" and "Cylinder1_1_5" intersect. (2:26 ÏÂÎç  ¶þÔÂ 14, 2008)
    [error] Objects "Ground" and "Cylinder1_1_6" intersect. (2:26 ÏÂÎç  ¶þÔÂ 14, 2008)
    [error] Objects "Ground" and "Cylinder1_1_7" intersect. (2:26 ÏÂÎç  ¶þÔÂ 14, 2008)
    [error] Objects "Ground" and "Cylinder1_1_8" intersect. (2:26 ÏÂÎç  ¶þÔÂ 14, 2008)
    [error] Objects "Ground" and "Cylinder1_1_9" intersect. (2:26 ÏÂÎç  ¶þÔÂ 14, 2008)
    [error] Objects "MediumFR25" and "Cylinder1" intersect. (2:26 ÏÂÎç  ¶þÔÂ 14, 2008)
    [error] Objects "MediumFR25" and "Cylinder1_1" intersect. (2:26 ÏÂÎç  ¶þÔÂ 14, 2008)
    [error] Objects "MediumFR25" and "Cylinder1_2" intersect. (2:26 ÏÂÎç  ¶þÔÂ 14, 2008)
    [error] Objects "MediumFR25" and "Cylinder1_3" intersect. (2:26 ÏÂÎç  ¶þÔÂ 14, 2008)
    [error] Objects "MediumFR25" and "Cylinder1_4" intersect. (2:26 ÏÂÎç  ¶þÔÂ 14, 2008)
    [error] Objects "MediumFR25" and "Cylinder1_4_1" intersect. (2:26 ÏÂÎç  ¶þÔÂ 14, 2008)
    [error] Objects "MediumFR25" and "Cylinder1_4_2" intersect. (2:26 ÏÂÎç  ¶þÔÂ 14, 2008)
    [error] Objects "MediumFR25" and "Cylinder1_4_3" intersect. (2:26 ÏÂÎç  ¶þÔÂ 14, 2008)
    [error] Objects "MediumFR25" and "Cylinder1_4_4" intersect. (2:26 ÏÂÎç  ¶þÔÂ 14, 2008)
    [error] Objects "MediumFR25" and "Cylinder1_4_5" intersect. (2:26 ÏÂÎç  ¶þÔÂ 14, 2008)
    [error] Objects "MediumFR25" and "Cylinder1_5" intersect. (2:26 ÏÂÎç  ¶þÔÂ 14, 2008)
    [error] Objects "MediumFR25" and "Cylinder1_1_1" intersect. (2:26 ÏÂÎç  ¶þÔÂ 14, 2008)
    [error] Objects "MediumFR25" and "Cylinder1_1_2" intersect. (2:26 ÏÂÎç  ¶þÔÂ 14, 2008)
    [error] Objects "MediumFR25" and "Cylinder1_1_3" intersect. (2:26 ÏÂÎç  ¶þÔÂ 14, 2008)
    [error] Objects "MediumFR25" and "Cylinder1_1_4" intersect. (2:26 ÏÂÎç  ¶þÔÂ 14, 2008)
    [error] Objects "MediumFR25" and "Cylinder1_1_5" intersect. (2:26 ÏÂÎç  ¶þÔÂ 14, 2008)
    [error] Objects "MediumFR25" and "Cylinder1_1_6" intersect. (2:26 ÏÂÎç  ¶þÔÂ 14, 2008)
    [error] Objects "MediumFR25" and "Cylinder1_1_7" intersect. (2:26 ÏÂÎç  ¶þÔÂ 14, 2008)
    [error] Objects "MediumFR25" and "Cylinder1_1_8" intersect. (2:26 ÏÂÎç  ¶þÔÂ 14, 2008)
    [error] Objects "MediumFR25" and "Cylinder1_1_9" intersect. (2:26 ÏÂÎç  ¶þÔÂ 14, 2008)
    [error] Objects "Ground2" and "Cylinder1" intersect. (2:26 ÏÂÎç  ¶þÔÂ 14, 2008)
    [error] Objects "Ground2" and "Cylinder1_2" intersect. (2:26 ÏÂÎç  ¶þÔÂ 14, 2008)
    [error] Objects "Ground2" and "Cylinder1_3" intersect. (2:26 ÏÂÎç  ¶þÔÂ 14, 2008)
    [error] Objects "Ground2" and "Cylinder1_4" intersect. (2:26 ÏÂÎç  ¶þÔÂ 14, 2008)
    [error] Objects "Ground2" and "Cylinder1_4_1" intersect. (2:26 ÏÂÎç  ¶þÔÂ 14, 2008)
    [error] Objects "Ground2" and "Cylinder1_4_2" intersect. (2:26 ÏÂÎç  ¶þÔÂ 14, 2008)
    [error] Objects "Ground2" and "Cylinder1_4_3" intersect. (2:26 ÏÂÎç  ¶þÔÂ 14, 2008)
    [error] Objects "Ground2" and "Cylinder1_4_4" intersect. (2:26 ÏÂÎç  ¶þÔÂ 14, 2008)
    [error] Objects "Ground2" and "Cylinder1_4_5" intersect. (2:26 ÏÂÎç  ¶þÔÂ 14, 2008)
    [error] Objects "Ground2" and "Cylinder1_5" intersect. (2:26 ÏÂÎç  ¶þÔÂ 14, 2008)
    [error] Objects "Ground3" and "Cylinder1_1" intersect. (2:26 ÏÂÎç  ¶þÔÂ 14, 2008)
    [error] Objects "Ground3" and "Cylinder1_1_1" intersect. (2:26 ÏÂÎç  ¶þÔÂ 14, 2008)
    [error] Objects "Ground3" and "Cylinder1_1_2" intersect. (2:26 ÏÂÎç  ¶þÔÂ 14, 2008)
    [error] Objects "Ground3" and "Cylinder1_1_3" intersect. (2:26 ÏÂÎç  ¶þÔÂ 14, 2008)
    [error] Objects "Ground3" and "Cylinder1_1_4" intersect. (2:26 ÏÂÎç  ¶þÔÂ 14, 2008)
    [error] Objects "Ground3" and "Cylinder1_1_5" intersect. (2:26 ÏÂÎç  ¶þÔÂ 14, 2008)
    [error] Objects "Ground3" and "Cylinder1_1_6" intersect. (2:26 ÏÂÎç  ¶þÔÂ 14, 2008)
    [error] Objects "Ground3" and "Cylinder1_1_7" intersect. (2:26 ÏÂÎç  ¶þÔÂ 14, 2008)
    [error] Objects "Ground3" and "Cylinder1_1_8" intersect. (2:26 ÏÂÎç  ¶þÔÂ 14, 2008)
    [error] Objects "Ground3" and "Cylinder1_1_9" intersect. (2:26 ÏÂÎç  ¶þÔÂ 14, 2008)
    [warning] Boundary Setup: Warning - The port impedance multiplier is set to 50, but no symmetry boundaries have been defined. (2:26 ÏÂÎç  ¶þÔÂ 14, 2008)

提示的错误是你的过孔和你的基片以及地之间相交了.
建议你把过孔的高度设计来正好连接到两边两个地就可以了,不用让他们相交.还有就是需要在基片中减去你画上去的过孔,这样就可以了

上面问题已经解决， 谢谢！
另外还有个问题，显示
    [warning] Boundary Setup: Warning - The port impedance multiplier is set to 50, but no symmetry boundaries have been defined. (11:32 ÉÏÎç  ¶þÔÂ 18, 2008)
这个是什么问题?