Antenna design using HFSS

Prepared by:

Mohammed K. Abu Foul

120090710

SupervisorDr. Mohammed Ouda

CONTENTS

4/19/2011 Islamic University of Gaza 2

Post process

Introduction

Getting results

Conclusion

Introduction

4/19/2011 Islamic University of Gaza 3

HFSS is high-performance full-wave

electromagnetic (EM) field simulator for arbitrary 3D

volumetric passive device modeling that takes advantage

of the familiar Microsoft Windows graphical user

interface.

It can be used to design antenna which it is our scope in

our course.

Introduction

4/19/2011 Islamic University of Gaza 4

To design an antenna using HFSS, you need:

1) Draw the geometry of the antenna

2) Determine the boundaries.

3) Determine Excitation.

4) Perform some post processes, such that:

• Add solution setup (specify the operating frequency)

• Insert far field setup.

• Add frequency sweep. (Range of the solution)

5) Validation check.

6) Analysis all.

Introduction

4/19/2011 Islamic University of Gaza 5

1) Draw the geometry of the antenna

1) Specify the substrate,

(εr, L, W, and H)

2) Determine the

GROUND surface

3) Specify the Patch

4) Determine the feeder.

Geometry of patch antenna

Introduction

4/19/2011 Islamic University of Gaza 6

1) Draw the geometry of the antenna

Geometry of patch antenna

Introduction

4/19/2011 Islamic University of Gaza 7

2) Determine the boundaries

Boundaries of patch antenna

Introduction

4/19/2011 Islamic University of Gaza 8

2) Determine the boundaries

• PerfE_inf_GND

Introduction

4/19/2011 Islamic University of Gaza 9

2) Determine the boundaries

• PerfE_patch

Introduction

4/19/2011 Islamic University of Gaza 10

2) Determine the boundaries

• Rad1

Introduction

4/19/2011 Islamic University of Gaza 11

3) Determine excitation

Excitation of patch antenna

Introduction

4/19/2011 Islamic University of Gaza 12

3) Determine excitation

Post processes

4/19/2011 Islamic University of Gaza 13

• Add solution setup

Post processes

4/19/2011 Islamic University of Gaza 14

• Insert far field setup

Post processes

4/19/2011 Islamic University of Gaza 15

• Insert far field setup

Post processes

4/19/2011 Islamic University of Gaza 16

• Add frequency sweep

Post processes

4/19/2011 Islamic University of Gaza 17

• Add frequency sweep

Post processes

4/19/2011 Islamic University of Gaza 18

5) Validation check

Post processes

4/19/2011 Islamic University of Gaza 19

6) Analysis All

Getting results

4/19/2011 Islamic University of Gaza 20

Getting results

4/19/2011 Islamic University of Gaza 21

• 3D plot

Getting results

4/19/2011 Islamic University of Gaza 22

• 3D plot

Getting results

4/19/2011 Islamic University of Gaza 23

• 2D plot

-11.50

-8.00

-4.50

-1.00

90

60

30

0

-30

-60

-90

-120

-150

-180

150

120

Ansoft LLC HFSSDesign1Radiation Pattern 8Curve Info

dB(GainTotal)Setup1 : Sw eep1Freq='2.25GHz' Phi='0deg'

dB(GainTotal)Setup1 : Sw eep1Freq='2.25GHz' Phi='90deg'

Getting results

4/19/2011 Islamic University of Gaza 24

• 2D plot (rectangular plot)

-100.00 -75.00 -50.00 -25.00 0.00 25.00 50.00 75.00 100.00Theta [deg]

-14.00

-12.00

-10.00

-8.00

-6.00

-4.00

-2.00

0.00

2.00

dB

(Ga

inT

ota

l)

Ansoft LLC HFSSDesign1XY Plot 1Curve Info

dB(GainTotal)Setup1 : Sw eep1Freq='2.25GHz' Phi='0deg'

dB(GainTotal)Setup1 : Sw eep1Freq='2.25GHz' Phi='90deg'

Conclusion

4/19/2011 Islamic University of Gaza 25

*) You can get the result that you want by clicking on the

parameter that you want to get.

*) Try to draw your antenna by yourself.

*) you can discuss your result by comprise it with your paper, or

according to your system consideration.

4/19/2011 Islamic University of Gaza 26

The End