Introduction

This document describes how to optimize the model created in the previous Waveguide T-Junction getting started guide. It includes instructions to set up and solve a basic parametric analysis and to create and solve an optimization setup. It also shows how to import the T-Junction geometry to SpaceClaim and to link it with HFSS (connecting CAD model variables to HFSS design parameters). Changes from the HFSS optimization analysis are reflected in the linked SpaceClaim geometry.

This chapter contains the following topics:

• Prerequisites
• What You Will Learn
• HFSS Optimetrics
• T-Junction Recap and Sample Project Overview

Prerequisites

We strongly recommend that you complete the tutorial Getting Started with HFSS: A Waveguide T-Junction before you work on this exercise. The parametric and optimization setups for this project are based on the design setup, analyses, and post processing performed in the Waveguide T-Junction tutorial. However, an example Tee model is included as part of the Ansys Electronics Desktop installation. It is identical to the model created via the prerequisite guide, except that the results have not been computed yet. However, the analysis setup, sweep, S-parameter plot, and E-field overlay are already defined. If you choose to complete this exercise without completing the prerequisite tutorial, the example Tee model provides the means to do so.

If you want to complete the optional SpaceClaim link exercise (in the last chapter of this guide), you will need to have the Ansys Workbenchapplication installed, which includes the SpaceClaim CAD solid modeling product.

What You Will Learn

You will learn to perform the following HFSS tasks in the Ansys Electronics Desktop application:

• Create a basic parametric setup.
• Solve a parametric analysis.
• Create a 2D x-y plot of S-parameter results.
• Create a 2D x-y plot of power distribution results.
• Create a geometry animation.
• Specify an optimization variable.
• Create an optimization setup, which includes defining a cost function and setting the range of variable values for an optimization.
• Run an optimization analysis.
• During an optimization analysis, create a plot of cost values versus solved iterations.
• Run an HFSS simulation using the optimal variable value.
• Update an existing field overlay plot with new results.
• If you continue to the SpaceClaim link exercise, you will learn to export geometry from the Modeler and import it into SpaceClaim.
• You will also learn to create a variable in SpaceClaim, save a project, and connect from HFSS using the SpaceClaim link.
• You will then solve the geometry parametrically in HFSS using Optimetrics, demonstrating a bidirectional workflow between SpaceClaim 3D CAD and Ansys Electronics Desktop.