HFSS15: Assigning Aperture Boundaries in HFSS-IE

An aperture boundary represents holes in the design.

•  Aperture boundary can only be assigned on sheet objects. This objected will be meshed as part of the solution process.

• Apertures can be assigned to any 2D objects (only objects: faces are not allowed). So if the 2D object touches the surface of 3D object, and you assign an aperture to the 2D object, you essentially create a hole on the 3D object. If the 2D object is touching ground plane, that means aperture is on ground plane.

To create an aperture in the infinite ground plane:

1. Create a 2D sheet object on the XY plane at the elevation of ground plane.

2. Select the object and right-click on Boundaries>Assign>Aperature to display the Aperature dialog.

3. Type the boundary’s name in the Name text box or accept the default name. (To change the default base name to one of your choosing, see Setting Default Boundary/Excitation Base Names.)