微波EDA (www.ostronger.com) 網友回復：

• 網友回復

  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....

• 網友回復

  個人覺得其在總結上面第２點中，應該是同軸線和偶合線用driven　terminal．可能是作者筆誤！

• 網友回復

  感謝分享

• 網友回復

  不錯,頂頂

• 網友回復

  真的很經典，真的很經典
  。。。。。。。。。

• 網友回復

      謝謝指點�。。�！

• 網友回復

  好�。。。。。。。。。。。。。。。。。。。。。�！

• 網友回復

  多謝老畢啊

• 網友回復

  原來是。。。。。。。。。。。
  那我得頂一個

申明：網友回復良莠不齊，僅供參考。如需專業解答，推薦學習李明洋老師的HFSS培訓視頻，或咨詢本站專家。