HFSS Eigenmode solver

[RFMWENG]

I want to solve for the cavity resonances are in a housing using HFSS. I setup the Eigenmode solver and ran the simulation.

The solution data shows tabular frequencies for each mode. What other information should I get from this simulation that would be useful? Are there any plots I should create?

 

[PlanarMetamaterials]

Hi RFMWENG,

If your cavity is bounded by discrete edges (e.g., it's a metal box), then the eigenmode solver will get you the resonant frequencies of each mode. Assuming you have a single design, that should be all of the information you need in terms of cavity resonances.

 

[RFMWENG]

Is there a way to find the magnitude of the resonances for plotting purposes?

Here's an example of the structure I'm simulating (with and without a lid)

 

[PlanarMetamaterials]

Hi RFMWENG,

The magnitude of the fields at these frequencies will depend on how they are being excited. In order to model this, you need to switch to a driven modal simulation and excite fields however you think is most realistic. The simulation result will be the steady state-fields, from which you can extract the field magnitudes.

Good Luck