An Antenna is Design Using CST Software Based on A Research Paper. After That Some Modification Have Done

1. Rectangular Ring shaped Dielectric Resonator
Antenna For Dual And Wideband Frequency
SEECE
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SEECE
Presented By
Pranav Kumar
M.Tech (CE)
1415203011
Under the Guidance
Mr. Amit Kumar
Assistant Professor
SEECE

2. Content
• Abstract.
• Research gap.
• Proposed DRA.
• Design Procedure.
• Results
• Design Comparison.
• Conclusion.
• References.
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3. Abstract
• A new modified planar dielectric resonator antenna
(DRA) is presented and investigated.
• The proposed DRA is excited by a microstrip feed
that is extend as a probe.
• On the opposite sides two narrow strips are
connected to the ground.
• Thus a wideband and a dual-band Antenna is
achieved.
• Parametric measurements and results are discussed.
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4. Research Gap
• Wideband and dual-band loaded monopole dielectric
resonator antenna[1].
• Dual band dielectric resonator antenna for GPS and
WLAN applications [2].
• Dual band dielectric resonator antenna mounted on a
defected ground plane [3].
• Slot-coupled antenna for dual-frequency operation
[4].
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5. Research Gap
• Dual-band hybrid dielectric resonator antenna with
CPW-fed slot [5].
• Hybrid dielectric resonator antennas with radiating
slot for dual-frequency operation [6].
• Dual-band split dielectric resonator antenna [7] .
• Ultra wideband dielectric resonator antenna with
broadside patterns mounted on a vertical ground
plane edge [8].
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6. Proposed DRA
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7. Design Procedure
• Step2: Defining Substrate & Ground Plane
Ground Plane Properties:
Length :11 mm
Width : 28 mm
Height : 0.889mm
Material used - Copper
Substrate Properties:
Length : 34 mm
Width : 28 mm
Height: 0.76 mm
Material Used- RT6002
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8. Design Procedure
• Step3: Defining Rectangular DRA
DRA Properties :
Length - 18.3 mm
Width - 14 mm
Height - 5.1 mm
Material Used–
New Material is created
having permittivity of 10.2
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9. Design Procedure
• Step4: Defining Air Gap within DRA
Air Gap Dimension:
Length : 10.7 mm
Width : 6.4 mm
Height : 5.1 mm
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10. Design Procedure
Microstrip Line Properties:
•Wider section of
Microstrip line has 50ohm
impedance.
•Narrower section of
microstrip line has 73ohm
impedance.
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• Step5: Defining Microstrip Line

11. Design Procedure
• Step 6: Structure with short circuit strip
Short ckt Line Properties:
• SCS 1 & SCS2 are used.
• Length is taken variable.
• Distance is taken variable.
• For better results optimal
parameter are used.
• Material used Copper.
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12. RESULTS
• Short ckt strip 1 & 2 is used
L1 = 14.2mm ; D1 = 5.5mm
L2 = 15.25mm ; D2 =7mm
•SCS 1 & SCS 2 both are
connected.
• optimal parameters are
used.
• Wide and Dual band is
achieved.
• Two resonant frequency
is achieved.
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Figure: S11 parameter for optimal value of scs1

13. RESULTS
• Figure(a) shows the
VSWR when SCS1 and
SCS2 is used.
•Frequency range-
2.3GHz-2.6GHz
3.6GHz -5.9GHz
• Figure (b) shows the z
matrix that shows the
impedance matching is
perfectly done.
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Figure (a)
Figure (b)

14. MODIFIED RESULTS
• DRA Dimension is
changed.
• Height of ground plane is
decreased.
• Dimension of Substrate is
changed.
• Fig(a) shows VSWR
• Frequency range is
2.3GHz-2.5GHz
2.9GHZ-7.7GHz.
• Figure(b) shows the
impedance matching.
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Figure (a)
Figure (b)

15. Results Comparison
Parameter
Design
Properties
Frequency
Band
Operating
Frequency
Directivity Gain Efficiency
DRA with
SCS1
(3.1-6.8)GHz 3.8GHz 3.094dBi 3.037dB 98.6%
DRA with
SCS1
(3.3-6.4)GHz 5.5GHz 4.071dBi 3.895dB 96.5%
DRA w/o
SCS
(3.6-7.4)GHz 6.7GHz 4.328dBi 4.309dB 98.3%
DRA with
SCS1&SCS2
(2.3-2.6)GHz 2.4GHz 2.456dBi 2.199dB 94.2%
(3.6-5.8)GHz 3.6GHz 2.275dB 2.106dB 96.1%
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16. Conclusion
• Proposed dual-band RRDR antenna covers two frequency
bands.
• A Narrow band from 2.4 to 2.6 GHz
• A Broad band from 3.3 to 5.85 GHz .
• In this case, many wireless systems from 2.4 to 6 GHz,
such as WLAN, WiMax, and Wi-Fi can be supported.
• The proposed RRDRs have excellent characteristics that
make them good candidates for various wireless
applications.
• Modified result covers dual frequency with increased
BW and increased selectivity.
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17. References
1. S.H. Ong, A.A. Kishk, and A.W. Glisson, “Wideband and dual-band loaded
monopole dielectric resonator antenna”, In 19th Annual Review of
Progress in Applied Computational Electromagnetics,2003, pp. 104–107.
2. L.K. Hady, A.A. Kishk, and D. Kajfez, “Dual band dielectric resonator
antenna for GPS and WLAN applications”, In 2008 Asia Pa-cific Microwave
Conference, Hong Kong and Macau, December 16–20, 2008, 4 p.
3. K.S. Ryu and A.A. Kishk, “Dual band dielectric resonator antenna mounted
on a defected ground plane”, In 2010 IEEE International Symposium on
Antennas and Propagation & USNC/URSI National Radio Science Meeting,
Washington, USA, July 3–8, 2011.
4. Z. Fan and Y.M.M. Antar, “Slot-coupled DR antenna for dual-frequency
operation”, IEEE Trans Antennas Propag 45 (1997), 306–308.
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18. References
5. Y. Gao, B.L. Ooi, and A.P. Popov, “Dual-band hybrid dielectric resonator
antenna with CPW-fed slot”, Microwave Opt Technol Lett 48 (2006), 170–
172.
6. T.A. Denidni and Q. Rao,” Hybrid dielectric resonator antennas with
radiating slot for dual-frequency operation”, IEEE Antennas Wireless
Propag Lett 3 (2004), 321–323.
7. T.H. Chang and J.F. Kiang, “Dual-band split dielectric resonator antenna”,
IEEE Trans Antennas Propag 55, 3155–3162, Nov. Wireless Week, pp. 387–
390, January 15–18, 2012, Santa Clara, California, 2007.
8. K.S. Ryu and A.A. Kishk, “Ultra wideband dielectric resonator antenna with
broadside patterns mounted on a vertical ground plane edge”, IEEE Trans
Antennas Propag 58 (2010), 1047–1053.
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19. Thesis
• Thesis Link—Download From Here
https://www.slideshare.net/PranavChauhan7/m
tech-thesis-on-antenna
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