3. ABSTRACT:
WSN is a group of spatially distributed sensor nodes for
monitoring the physical environment.
WSN system requires to have a good coverage without
failing signal strength.
The range of coverage is dependent directly on the antenna
performance.
Hence planar antenna is used due to their small area and
the ability to be designed to blend into the surroundings
In this project , we design a simple planar antenna that
operates at 2.4GHz .
4. WIRELESS SENSOR NETWORK:
A wireless sensor network (WSN) consists of spatially
distributed autonomous sensors to monitor physical or
environmental conditions, such as temperature, sound ,
pressure , etc. and to cooperatively pass their data through
the network to a main location.
Sensing + CPU + Antenna
=WSN.
5. ANTENNA IN WSN:
Sensors collect the data from the work field.
These must be transferred to the sink node through
wireless medium.
Hence , antenna is used in the wireless sensor
networks.
6. CHALLENGES IN ANTENNA
DESIGN FOR WSN:
CHALLENGES OF
ANTENNA:
Inexpensive.
Minimized size & cost.
Easy to design.
Power consumption.
CHALLENGES OF WSN:
Heterogeneity.
Large scale coordination.
Real time computation.
ENERGY CONSTRINED.
Security & privacy.
Survivability in harsh
environment.
7. PLANAR ANTENNA
• Planar antenna including the micro strip and printed
antenna and the other types of antenna that are flat in
appearance.
• Low profile.
• Inexpensive .
• Light and compact
9. CPW ANTENNA:
A coplanar waveguide structure consists of a median
metallic strip of deposited on the surface of a dielectric
substrate slab with two narrow slits ground electrodes
running adjacent and parallel to the strip on the same
surface.
10. Cont..,
Invented in 1969 by C.P.Wen.
Low radiation loss, less dispersion, easy integrated
circuits and simple configuration.
Wider bandwidth.
Better impedance match.
12. DESIGN OF A CPW-FED ULTRA WIDE BAND ANTENNA
40X50X1.6 mm .
2.7 – 9.3 GHz .
Gain – 9.6 dB .
Relative bandwidth – 110% .
Hu, Shaowen, et al. "Design of a CPW-Fed Ultra Wide Band Antenna." Open Journal of Antennas and Propagation 1
(2013): 18.
LITERATURE SURVEY
13. A COMPACT CPW-FED UWB ANTENNA WITH GSM,
GPS, BLUETOOTH AND DUAL NOTCH BANDS
APPLICATIONS
25x24x1.6 mm .
Pass band - 1.5 , 1.8 , 2.4 GHz .
Band notch – 3.5 , 5.5 GHz .
Return loss = -15dB .
Luo, Yonglun, et al. "A COMPACT CPW-FED UWB ANTENNA WITH GSM, GPS, BLUETOOTH AND DUAL NOTCH
BANDS APPLICATIONS." Progress In Electromagnetics Research C 35 (2013).
14. A Miniaturized Hilbert Inverted-F Antenna for
Wireless Sensor Network Applications
Huang, Jung-Tang, Jia-Hung Shiao, and Jain-Ming Wu. "A miniaturized Hilbert inverted-F antenna for wireless
sensor network applications." Antennas and Propagation, IEEE Transactions on 58.9 (2010): 3100-3103
35x6x1.6 mm.
Return loss = - 29 dB .
Bandwidth = 9.4 % .
77 % size reduction .
Gain = 1.4 dBi .
15. Design and Development of a Novel 3-D Cubic Antenna
for Wireless Sensor Networks (WSNs) and RFID
Applications
3x3x3 cm.
915 MHz .
Gain = 0.53 dBi .
Efficiency = 72% .
Return loss = -25dB.
Kruesi, Catherine M., Rushi J. Vyas, and Manos M. Tentzeris. "Design and development of a novel 3-D cubic antenna
for wireless sensor networks (WSNs) and RFID applications." Antennas and Propagation, IEEE Transactions on57.10
(2009): 3293-3299.
17. SIMULATION TOOL-IE3D
IE3D – Integral Equation in 3 Dimension.
It uses method of moment technique.
Modeling of true 3D metallic and dielectric structures.
High accuracy, high efficiency and high flexibility full-
wave EM engine.
Modeling of structures with finite ground planes and
differential feed structures.
3D and 2D display of current distribution, radiation
patterns, and near field.
25. CONCLUSION:
The aim of our project is to design a simple planar
antenna for wireless sensor networks.
An inverted-pi shaped antenna was designed.
Simulated results – 2.4 GHz , -22.5 dB , 1.4 .
Measured results – 2.27 GHz, -24.8 dB , 1.1 .
The measured results holds good with simulated
results. Due to soldering and SMA connector
mismatch we have a slight shift in measured results.
26. REFERENCES:
Rahul, T. Dahatonde, and B. Deosarkar Shankar. "Design and parametric evaluation
of rectangular microstrip patch antnna for GSM application." International Journal
of Engineering Science (2013).
Ali, Jawad K. "A New Dual Band E-shaped Slot Antenna Design for Wireless
Applications." PIERS Proceedings, Suzhou, China September 12 (2011).
Nisar, Nuzhat, Shailendra Singh Pawar, and Mohd Sarwar Raeen. "A Reciprocal U
Shaped Fractal Ultra Wide Band Patch Antenna."Volume 2, Issue 9, September 2012
Shrivastava, Manoj K., A. K. Gautam, and Binod K. Kanaujia. "An M‐shaped
monopole‐like slot UWB antenna." Microwave and Optical Technology Letters56.1
(2014): 127-131.
Kruesi, Catherine M., Rushi J. Vyas, and Manos M. Tentzeris. "Design and development
of a novel 3-D cubic antenna for wireless sensor networks (WSNs) and RFID
applications." Antennas and Propagation, IEEE Transactions on57.10 (2009): 3293-3299.
Ali, Jawad K. "A New Dual Band E-shaped Slot Antenna Design for Wireless
Applications." PIERS Proceedings, Suzhou, China September 12 (2011).
27. Cont..,
Huang, Jung-Tang, Jia-Hung Shiao, and Jain-Ming Wu. "A miniaturized Hilbert
inverted-F antenna for wireless sensor network applications." Antennas and
Propagation, IEEE Transactions on 58.9 (2010): 3100-3103.
Luo, Yonglun, et al. "A compact CPW-fed UWB antenna with GSM, GPS,
bluetooth and dual notch bands applications." Progress In Electromagnetics
Research C 35 (2013).
Mandal, Tapan, and Santanu Das. "A Coplanar Waveguide fed ultra wideband
hexagonal slot antenna with dual band rejection."Progress in Electromagnetics
Research C 39 (2013).
Hu, Shaowen, et al. "Design of a CPW-Fed Ultra Wide Band Antenna." Open
Journal of Antennas and Propagation 1 (2013): 18.
