Learning Forum

[henry.ojukwu]

Hi everyone,

I need help with a characteristic mode analysis (CMA) of my unit cell.

I'm trying to conduct a CMA on my unit cell, but in the CMA solution type in HFSS, I'm unable to assign a boundary condition and Floquet port to the air box surrounding the unit cell. As a result, each time I attempt to run the simulation, I encounter an error message that states, "CMA requires a boundary and excitation."

Could someone please guide me on how to assign the appropriate boundary and excitation to the unit cell in this situation?

Thank you!

 

[Aymen Mzoughi]

You are using the wrong solver. CMA solver is IE based. You should be using HFSS with Hybrid and Arrays solver instead.

There is an HFSS built-in example of a unit cell that you can take as reference for your setup (File > Open Examples > HFSS > Antennas> phased_array_unitcell.aedt)

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[henry.ojukwu]

I have managed to resolve the problem