We’re putting the final touches on our new badges platform. Badge issuance remains temporarily paused, but all completions are being recorded and will be fulfilled once the platform is live. Thank you for your patience.

Ansys Learning Forum › Forums › Installation and Licensing › Ansys Products › HFSS – Electric Field on lumped port problem › Reply To: HFSS – Electric Field on lumped port problem

July 11, 2024 at 4:14 pm
Jason.k
Ansys Employee

Hello Jean, 

We appreciate reaching out to Ansys Forum. 

The different results you are experiencing when using Lumped ports in HFSS with Driven Terminal or Driven Modal solution types can be attributed to the nature of these solution methods. Driven Terminal and Driven Modal are two different solution types that are using different interpretations. In Modal, Port’s signal decomposed into incident and reflected waves while in Terminal Port’s signal interpreted as a total voltage (Vtotal = Vinc + Vref). 

To convert this total voltage to power we can use this formula: P=V^2/(2*Zo). 

I hope this helps. 

Kind regards, 
Jason.k