SIWave parallel plate capacitor simulation

- November 12, 2020 at 6:58 pm
  
  Dracarys99
  Subscriber
  
  Reading on the internet, I see that it is possible to simulate a PCB modelling it as a large parallel plate capacitor and obtain the Impedance vs Frequency plots, where we can see the "spikes" towards the left side of the graph, something like this:-
- November 13, 2020 at 2:49 pm
  
  manny
  Ansys Employee
  
  Hi Dracarys99,nInstead of SIwave, Q3D Extractor is an appropriate choice for parallel plate capacitor simulation. Ansys Q3D Extractor can extract RLCG parameters after performing 2D and 3D quasi-static electromagnetic field simulations. Good luck!nBest,nManny.n
- November 16, 2020 at 9:04 am
  
  Dracarys99
  Subscriber
  
  nI tried HFSS and Q3D. In both cases, I made a 50mmx50mm parallel plate capacitor with 2mm of FR4 dielectric in between. I get the capacitance value correct, but I think I have to use the DrivenModal solution type in HFSS for getting the impedance vs freqeuncy plot like I mentioned above. Also, I can't get how to assign (and where) a lumped port, I think I have to use this as well. nIt will helpful if you outline the process of getting the graph I need (as I mentioned above) in Q3D (or in HFSS).nThank you.n
- November 16, 2020 at 3:29 pm
  
  Dracarys99
  Subscriber
  
  I want to get a result like this n
- November 19, 2020 at 10:47 am
  
  Dracarys99
  Subscriber
  
  n
- December 25, 2020 at 6:08 am
  
  Dracarys99
  Subscriber
  
  For this problem I am getting the correct capacitance but the impedance vs frequency graph that I plot has an exponentially decaying to zero curve, nothing like the graph I need (posted above). What am I doing wrong?n

Viewing 5 reply threads

You must be logged in to reply to this topic.

Ansys Innovation Space

SimACE-23

Boost Ansys Fluent Simulations with AWS

Computational Fluid Dynamics (CFD) helps engineers design products in which the flow of fluid components is a significant challenge. These different use cases often require large complex models to solve on a traditional workstation. Click here to join this event to learn how to leverage Ansys Fluids on the cloud, thanks to Ansys Gateway powered by AWS.

Earth Rescue – An Ansys Online Series

The climate crisis is here. But so is the human ingenuity to fight it. Earth Rescue reveals what visionary companies are doing today to engineer radical new ideas in the fight against climate change. Click here to watch the first episode.

Ansys Blog

Subscribe to the Ansys Blog to get great new content about the power of simulation delivered right to your email on a weekly basis. With content from Ansys experts, partners and customers you will learn about product development advances, thought leadership and trends and tips to better use Ansys tools. Sign up here.

Trending discussions