Learning Forum

[Yushu Zhao]

Hello:

I am working on using HFSS to simulate the Q factor of a specific structure. The version of the HFSS I am using is 2022 R2

My setup is :

1. change the solution type to HFSS, Network analysis, Modal, auto open ragion.
2. I cover a layer of perfect E on the input/ and output terminal of my structure
3. define the wave port on the face of the input/ and output terminal of my structure
4. in analysis I selct broadand, and add a frequency sweep. 
5. run the simulation and export the Y parameter.
6. The formula to calulate the Q factor that I used is im(1/Y11)/Re(1/Y11)

Now, the Q factor graph that I get is wired since I got some very high speck. 

Could you please help me check where I went wrong?

[dushyant.marathe]

Hello Yushu Zhao,

Thanks for posting your query on Ansys Learning Forum. I could see that mentioned setup steps and expression are correct to compute the quality factor of the structure.

However, I suspect issue with some settings especially Port creation. This will have to check with the actual model. If you have access to Ansys Techical support, please raise a service ticket and support engineer will connect you to resolve the issue.

Thanks.

[Yushu Zhao]

Could you please provide me with the way to access the ansys technical support?

[dushyant.marathe]

Hi Yushu,

Please get in touch with your Ansys account manager. He will guide you on how to request access to Ansys Technical support.

Thanks,