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Lecture 6: Introduction to Optimetrics

2015.0 Release

ANSYS HFSS for Antenna Design

1 ? 2015 ANSYS, Inc. May 6, 2015 Release 2015.0

Introduction

? Optimization

? A process of finding a better or more suitable design instance among the possible design variations

? Optimetrics is an add-on module which provides numerous analysis tools

? Parametric

? Optimization

? Sensitivity

? Statistical

? Tuning

? Analytic Derivatives

? Enables ANSYS DesignXplorer Link

? Allows centralized control of design iterations from one common interface

? Optimetrics allows the user to:

? Automate parametric sweeps

? Perform real time parameter tuning using Analytic Derivatives

? Identify performance specifications to optimize

? Perform sensitivity and statistical analysis on optimized model

? Link to DesignXplorer for

- Optimization via a Surface Response using Design of Experiments (DOE)

- Six Sigma Analysis

2 ? 2015 ANSYS, Inc. May 6, 2015 Release 2015.0

Using Optimetrics

? Process

? Create parameterized model

? Define design parameters to vary

- Model geometry, material properties, etc.

? Perform analyses

- Parametric

- Optimization

- Sensitivity

- Statistical

- Tuning

? Where can it be used?

? User may apply parameterization at all modeling stages

- Geometry (size, shape, orientation, quantity, etc.)

- Materials (lossless, complex, anisotropic, etc.)

- Boundaries (impedance/conductance boundaries, linked boundary scan angles, symmetry or mode cases, etc.)

- Solution setup

- Post Processing Quantities (Port magnitude/phase, De-embedding, etc.)

? Once model is parameterized, optimization can be performed toward an extensive array of cost functions

- Circuit parameters (S, Z, or Y-parameters)

- Antenna patterns (Directivity, gain, axial ratio, etc.)

- Emissions

- Derived field quantities (radiated power, etc.)

3 ? 2015 ANSYS, Inc. May 6, 2015 Release 2015.0

What does D 2y dx 2 mean? Furthermore, What does D 2y dx 2 mean?, D ^ 2y / dx ^ 2 means 2 time derivative and. (Dy/ DX )^ 2 means 1 times derivative and square of 1 time derivative. For example, Letâ€™s take. Y=x. Finally, Why is second derivative d2y dx2?, The derivative with respect to x is d/dx, so the derivative of the derivative of y is (d/dx) (d/dx)y, or ddy/dxdx.

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