ICT role in 21st century education and its challenges
A seminar presentation on "Design and Simulation of E and U shape Microstrip Patch Antenna for Biomedical Applications on HFSS"
1. E AND U SHAPE MICROSTRIP
PATCH ANTENNA FOR
BIOMEDICALAPPLICATIONS ON
HFSS
BY:
RAMIT KIRTI SARAN
AMIT KIRTI SARAN
B-TECH(ECE), 3rd
YEAR
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2. CONTENTS
Introduction
Microstrip patch antenna
Feeding techniques and Design equations
HFSS software tool and HFSS module
E and U shape of Microstrip patch antenna
Ansoft HFSS project flow
Results
Applications, advantages and future scope
Conclusion
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3. INTRODUCTION
What is an Antenna ?
How EM Waves generate
Basic Antenna Parameters
Gain
Directivity
Radiation Pattern
Tool: HFSS
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Fig.1: radiating Antenna[4]
4. MICROSTRIP PATCH ANTENNA
Microstrip patch antenna consists of a conducting patch and
ground plane between them is a dielectric medium called the
substrate
The dimensions of a patch are smaller as compared to the
substrate and ground
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Fig.2: Microstrip Patch[2]
5. M i c r o s t r i p l i n e f e e d
C o a x i a l f e e d
A p e r t u r e c o u p l e d f e e d
P r o x i m i t y c o u p l e d f e e d
FEEDING TECHNIQUES
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Fig.3: Types of Feeding Techniques[5]
6. DESIGN EQUATIONS
Step 1: Calculation of the Width (W):
The width of the Microstrip patch antenna is given as:
Step 2: Calculation of Effective dielectric constant
(εreff):
The effective dielectric constant is given by:
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7. DESIGN EQUATIONS
Step 3: Calculation of the Effective length ( Leff):
The effective length is given as:
Step 4: Calculation of the length extension (L):
The length extension is given as:
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8. DESIGN EQUATIONS
Step 5: Calculation of actual length of patch (L):
The actual length is obtained by:
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9. HFSS SOFTWARE TOOL
HFSS is a 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
High Frequency Structure Simulator
It was developed by Prof. Zontal Cendes and his student at
Mellon Univ. in 1989
HFSS is commercial elements
It is a method solver for electromagnetics
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18. APPLICATIONS
Used in cellular phones, GPS systems etc.
Compatible in wireless communications.
The expansive transfer speed which is required in different
applications
biomedical application (treatment of disease, tumour, and
so on.)
Air ship, Rocket applications, and so forth
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19. ADVANTAGES OF MICROSTRIP
ANTENNAS
Low cost
Light weight and small in dimensions
Mechanically robust when mounted on rigid surfaces
Easy to fabricate
Easy to feed (coaxial cable, Microstrip line, etc.)
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20. CONCLUSION
An antenna simulation is done on High Frequency
Structure Simulator HFSS. The design procedure begins
with determining the length, width, height of patch
plane by formulae. The obtained result of this antenna
is peak gain of 9.37db, peak directivity is 10.024db and
antenna efficiency is 93%, the minimum value of VSWR
for this antenna is 0.0210 at 6.0175 GHz resonant
frequency.
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22. REFERENCES
[1] Amit kirti, Ramit kirti, Geeta” Design and Simulation
of E and U Shape Microstrip Patch Antenna for
biomedical Applications” International Journal of
Innovative research in Computer and Communication
Engineering(IJIRCCE) ISSN: 2320-9801, Volume-3,
Issue-10, November 2015
[2] C.A. Balanis, Antenna Theory, 2nd ed. New York: John
Wiley & Sons, Inc., 1997.
[3] J.D. Kraus, ‘Antennas’, 1988, McGraw-Hill
[4] www.myerseng.com
[5] www.antenna-theory.com
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