Learning Forum

[Glenn Monroe]

I have gone through enough tutorials that I now know how to set up a lumped port on something fairly simple like a PIFA antenna.  Lumped port excitation goes between the antenna and ground.  There is a distinct antenna, excitation and ground.  My model looks like what you see below:

However, a slot antenna is a bit different.  Here the ground and the antenna are the same material.  I am trying to set up a lumped port between the two sides of the slot.  In theory (at least in my head) this puts the stimulus on one side of the slot and the ground connection on the other.

However, when I run this I get the following error:

Slot example (C:/Users/Glenn Monroe/OneDrive - Stryker/Electrical/Gen5/Gen 5 Stryker/Antenna/)
  HFSSDesign1 (Terminal Network)
    [error] Port refinement, process hf3d error: Port 1 does not have a solved inside material on either side.. Please contact Ansys technical support. (11:22:09 AM  Sep 26, 2022)
    [error] Simulation completed with execution error on server: Local Machine. (11:22:09 AM  Sep 26, 2022)

I went back to the solid element that makes up the body of the antenna and verified that the "solve inside" box is checked.

Any ideas what is going wrong and how to fix it?  If I am completely off base with how I am attacking this model I would love to hear that as well.

Thanks

Glenn

[Praneeth]

Hi Glenn,

It would be difficult to conclude the real cause of the error in your simulation with the information you provided.

Please provide more information on how you are implementing the slot antenna in the tool by providing the screenshots of your model with the object information, boundaries and excitations. Did you define any open region?

If it helps, you can design a slot antenna using the antenna toolkit in the tool which creates the whole simulation in simple steps. Then you can use this design reference to see where the error lies in your simulation.

All the very best,
Praneeth.

[Glenn Monroe]

Not sure if this is what you need, but here's a screenshot showing everything:

 

I'll give the antenna toolkit a shot.  Thanks.