coplanar micro-strip antenna
TRANSCRIPT
-
7/30/2019 Coplanar Micro-strip Antenna
1/22
By: A.Arjun(457)
D.Pavan(448)
V.Karthik(451)
COPLANAR MICRO-STRIP
ANTENNA
-
7/30/2019 Coplanar Micro-strip Antenna
2/22
Index Introduction Micro strip antenna(actual)
Coplanar micro strip antenna
common shapes of microstrip patch elements
Feeding & patch we use CST studio suite
Coplanar square &circular micro strip antennas
1. Variation of Return loss versus Frequency(at 10.7 Ghz)
2. Radiation pattern
3. Far-Field Radiation Pattern
Advantages
Disadvantages
conclusion1.
-
7/30/2019 Coplanar Micro-strip Antenna
3/22
INTRODUCTION
The project includes the designing of a square &circular coplanar micro-strip antenna at X-band
.Actual micro-strip antennas have more radiation to
reduce that we will fabricate a PEC metal around
patch which acts as a ground such that radiationreduces. Keeping such ground makes the actual
micro-strip antenna a coplanar.
-
7/30/2019 Coplanar Micro-strip Antenna
4/22
Micro strip antenna(actual)
-
7/30/2019 Coplanar Micro-strip Antenna
5/22
Coplanar micro strip antenna
Its called a coplanar as the patch is covered
with pec metal around it
-
7/30/2019 Coplanar Micro-strip Antenna
6/22
Common Shapes of microstrip
patch elements
mircro strip antennas may of different shapes andthese are the examples
-
7/30/2019 Coplanar Micro-strip Antenna
7/22
Feeding & patch we use:
Generally the feeding may b of two types
1)strip line feeding.
2)probe feeding.
Here in coplanar micro-strip antennas we use strip line
feeding.
The patches are the square and circular coplanar
micro-strip antennas.
-
7/30/2019 Coplanar Micro-strip Antenna
8/22
CST studio suite :
-
7/30/2019 Coplanar Micro-strip Antenna
9/22
Coplanar square micro strip
antenna
Dielectric
constant2.2
-
Thickness
(h)(substrate)
31 Mill
Operating
frequency10.7 GHz
LengthL(patch)
8.99 Mm
Strip
line1.3 Mm
-
7/30/2019 Coplanar Micro-strip Antenna
10/22
Variation of Return loss versus
Frequency(at 10.7 Ghz)
-
7/30/2019 Coplanar Micro-strip Antenna
11/22
Radiation pattern
-
7/30/2019 Coplanar Micro-strip Antenna
12/22
Far-Field Radiation Pattern
-
7/30/2019 Coplanar Micro-strip Antenna
13/22
Coplanar Circular micro strip
antenna
PARAMETRS
DIMENSION
UNIT
Dielectric
constant2.2 -
Thickness(h)(substr
ate)
31 mill
Operating
frequency
10.7 GHz
Length
L(patch)8.99 Mm
Strip line 1.3 Mm
-
7/30/2019 Coplanar Micro-strip Antenna
14/22
Frequency
-
7/30/2019 Coplanar Micro-strip Antenna
15/22
Radiation pattern
-
7/30/2019 Coplanar Micro-strip Antenna
16/22
Far-Field Radiation Pattern
-
7/30/2019 Coplanar Micro-strip Antenna
17/22
Advantages
Light weight and low volume.
Low profile planar configuration which can be easily
made conformal to host surface.
Low fabrication cost, hence can be manufactured in
large quantities.
Supports both, linear as well as circular polarization.
Can be easily integrated with microwave integrated
circuits (MICs). Capable of dual and triple frequency operations.
Mechanically robust when mounted on rigid surfaces.
-
7/30/2019 Coplanar Micro-strip Antenna
18/22
Disadvantages
Narrow bandwidth.
Low efficiency.
Low Gain.
Extraneous radiation from feeds and junctions. Poor end fire radiator except tapered slot antennas.
Low power handling capacity.
Surface wave excitation.
-
7/30/2019 Coplanar Micro-strip Antenna
19/22
Applications
Mobile and satellite communication application
Global Positioning System applications
Radio Frequency Identification (RFID)
Radar Application Medicinal applications of patch
-
7/30/2019 Coplanar Micro-strip Antenna
20/22
conclusion
The coplanar circular & square microstrip antennasdesign has been proposed and successfully
implemented. The proposed structure has been
simulated by using the CST STUDIO software. The
coplanar square microstrip antenna enhancesbandwidth, gain and good return loss (S11 parameters)
of -15dB & -22dB is achieved along with broad side
radiation pattern.
-
7/30/2019 Coplanar Micro-strip Antenna
21/22
-
7/30/2019 Coplanar Micro-strip Antenna
22/22