Introduction

This example looks at the radiation pattern from a monocone antenna using the HFSS design type with an IE hybrid region applied to the model objects. An IE Region results in a fullwave Integral Equation solver being used to analyze the model. This solver is particularly well suited for analyzing large conducting objects, and it eliminates the necessity of creating an open region (that is, a vacuum or air box) around the model to determine far field effects.

Note:

IE Regions in an HFSS design have replaced the legacy HFSS-IE design type. If you open a legacy HFSS-IE design, you are prompted with the option to automatically convert the model to an HFSS design with an IE Region applied to its objects.

3D view of a monocone antenna as seen in the Ansys Electronics Desktop modeler window

Building this model is straightforward. You need to create a 3D solid cone and two rectangular sheet objects—one to serve as an infinite ground plane and one as a port.

 

Launch Application, Insert HFSS Design, and Set Solution Type

Prepare for building the model by completing the following steps:

  1. Launch the View of the Ansys Electronics Desktop icon Ansys Electronics Desktop application.
  2. Insert a new project (if an empty one doesn't already exist), and name it MonoconeAntenna.
  3. On the Desktop ribbon tab, click View of the HFSS icon HFSS to insert an HFSS design.
    4. Note:

    You do not have to access the HFSS drop-down menu. Inserting an HFSS design (as opposed to an HFSS 3D Layout design) is the default action when you click this icon.

  4. Using the menu bar, click HFSS > Solution Type.
  5. In the Solution Type dialog box that appears, choose HFSS with Hybrid and Arrays. Also, ensure that the remaining settings match the following image:

    6. The HFSS Solution Type dialog box with the HFSS with Hybrid and Arrays option selected. Network Analysis and Terminal options are also selected

  6. Click OK.