微波EDA (www.mweda.com) 网友回复：

• 网友回复

  HFSS---the difference between wave port and lump port
  
  With lump port=> the excitation is applied at a point/cell, as a voltage or current.
  With wave-port=> the excitation is so-called eigen-wave, such as the quasi-tem wave supported by a microstrip line. It applies over a cross-sectional area.
  
  voltage is scalar, wave is vector by nature, hence there are substantial difference between the two. So use waveport whenever possible, because "simulation of wave phenomenon" is what HFSS is designed for. And compare with the "correct" measurement whenever possible (i.e. measure "wave", not simply "voltage").
  
  Why lumped port is there? It is easy to applied and people found that good/reasonable results can be obtained. Why? if the frequency is low enough or the excitation is applied at sufficiently small area, then the "wave" can be described by some "voltage" or "current", which must be "measured"/"calculated"/de-embedded/etc in the correct manner.
  
  if the excitation can be applied on some locally uniform region=>waveport,
  if geometry/material discontinuities are near/closer to the point of excitation=>lumped port might be the only way.
    
  
  The subject of lumped vs wave port is actually complicated. people continue to study related matters, (e.g. arguing what is the "characteristic impedance").
  
  Reading about the various de-embedding scheme should help with the understanding....

• 网友回复

  个人觉得其在总结上面第２点中，应该是同轴线和偶合线用driven　terminal．可能是作者笔误！

• 网友回复

  感谢分享

• 网友回复

  不错,顶顶

• 网友回复

  真的很经典，真的很经典
  。。。。。。。。。

• 网友回复

      谢谢指点！！！！

• 网友回复

  好！！！！！！！！！！！！！！！！！！！！！！！

• 网友回复

  多谢老毕啊

• 网友回复

  原来是。。。。。。。。。。。
  那我得顶一个

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