fss hfss file
Here are some simple instructions for making an FSS (or any type of array really)
- Draw your unit cell
- Make an air box around it (~1/4 wavelength spacing is safe)
- Make a PML off top or bottom (using the wizard is fine – pick direction your excitation will be aiming at (eg, bottom of FSS)) If you have a version of HFSS that supports it, select "Reference for Frequency Selectable Surface (FSS)"
- Make a radiation boundary off of the other (or, can use another PML in some cases, but isn’t always necessary)
- Set up your excitation (plane wave, port, etc) Use a plane wave for FSS. Aim the k vector at the PML
- Make a box directly around everything, even PML box
- Set master/slave BCs on walls (see help for info on this)
- Set up sweep and solve!