Post on 27-Mar-2020
transcript
CONTENTS
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Post process
Introduction
Getting results
Conclusion
Introduction
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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
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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
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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
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1) Draw the geometry of the antenna
Geometry of patch antenna
Introduction
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2) Determine the boundaries
Boundaries of patch antenna
Introduction
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3) Determine excitation
Excitation of patch antenna
Getting results
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• 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
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• 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
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*) 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.