A COMPARATIVE ANALYSIS OF WIDE
BAND ANTENNA WITH REDUCED
RADAR CROSS SECTION
Presented By,Ms. T. Srisuji & Mr. C. Nandagopal,M. Kumarasamy College of Engineering,Karur.
• Objective
• Introduction
• Printed Circular Disc Monopole Antenna
• A Novel Ultra Wide Band Antenna with RRCS
• A Novel Low RCS Mobius- Band Monopole Antenna
• Planar Octagonal shaped UWB antenna with RRCS
• Comparative Analysis
• Conclusion
• References
Presentation Outline
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• To compare the different Ultra Wide Band
antenna with Reduced Radar Cross Section
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Objective
UWB • Wide bandwidth• Low Profile• Easy Fabrication• Low complexity, Low
Cost
RCS• Measure of detecting
the objects• Larger RCS- Passenger
airliner• RRCS- Stealth aircraft,
Ballistic Missiles
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Introduction
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Printed Circular Disc Monopole Antenna
• 2.69 to 10.16GHz
• A circular disc monopole radius r, 50Ω
microstrip feed line are printed on the same
side of the dielectric substrate
• FR4 substrate of thickness 1.5mm
εr=4.7 was used
r=10mm,h=0.3mm,L=50mm,W=42mm,
L1= 20mm, W1=2.6mm
• Simple structures
• Ease of fabrication
• Performance- dependent on the width of the
ground plane
Geometry of a Printed Circular Disc Monopole
Antenna
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Novel UWB with RRCS
• 2 Circular ring patches, ground plane,
microstrip line
• Dielectric substrate t= 1.6mm, εr = 2.65,
Loss tangent= 0.02, 50Ω microstrip feed
line
• Metallic holes – 0.3mm
• 1.99- 10.8GHz
• RCS reduction- High frequencies
• No RRCS- Low frequenciesGeometry of a UWB
Antenna
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A Novel Low RCS Mobius- Band Monopole
• Mobius- rectangle- one end fixed-
rotating opposite end
• 2.8GHz- 11.0GHz
• Two circular ring patches of width 2mm.
• Printed on FR-4 substrate with dielectric
constant= 4.4 and thickness= 0.8mm and
fed by 50Ω microstrip lines.
• Metallic via holes
– Upper , lower annuluses- 10 via
holes- r=0.1mm
– Adjacent via holes 0.2mm
• RCS reduced - 7dB
Geometry of Mobius- Band Monopole Antenna
POS- UWB with RRCS
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• 2.5- 18 GHZ
• Subtracting metallic areas- small surface
currents
• R=4mm, F=6mm
• Ex=35mm, Ey=29mm
• RCS reduced 10dB- whole BW
• Low frequency- RRCS- 25dB Geometry of Octagonal Shaped Antenna
COMPARATIVE ANALYSIS
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S. No AntennaFrequency
Range Inference
1Printed Circular Disc Monopole Antenna (PCDMA)
2.69- 10.16 GHz
• Wide operating BW • Simple structures• Ease of fabrication• Performance- depend on width of the ground plane, Gain is reduced at 9GHz
2A Novel Ultra Wide Band Antenna with RRCS
1.99- 10.8GHz• RCS reduced at high frequencies, not at low frequencies
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S. No AntennaFrequency
Range Inference
3A Novel Low RCS Mobius- Band Monopole Antenna
2.8- 11.0 GHz• Good radiation Performance• RCS is reduced about 7dB
4
Planar Octagonal Shaped UWB Antenna with RRCS
2.5- 18GHz
• Removing area of smaller current distribution. • RCS reduced 10dB, Low Freq- 25dB
Contd.,
• Different types of UWB- compared• Octagonal shaped UWB antenna with RRCS-
Good antenna performance
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Conclusion
[1] Liang, J., C. Chiau, X. Chen, and C. Parini, Study of a printed circular disc monopole antenna for UWB systems," IEEE Trans. Antennas Propag., Vol. 53, No. 11, 35003504, 2005.
[2] W. Jinag, S. X. Gong, Y. P. Li, T. Hong, X. Wang, and L. T. Jiang, “A novel low RCS Mobius band monopole antenna,” J. Electromagn.Waves Appl., vol. 23, no. 14–15, pp. 1887–1895, 2009
[3] T. Hong, S. -X. Gong, W. Jiang, Y.-X. Xu, and X. Wang, “A novel ultra-wideband antenna with reduced radar cross section,” Progr. Electromagn. Res., vol. PIER 96, pp. 300–308, 2009.
[4] Cengizhan M. Dikmen, Sibel CIMEN, Gonca CAKIR. “An Octagonal Shaped Ultra Wide Band Antenna With Reduced RCS”, International Japan-Egypt Conference on Electronics, Communications and Computers. 2013
[5] Cengizhan M. Dikmen, Gonca CAKIR,” Double side Axe shaped UWB antenna with Reduced RCS”, Asia pacific Microwave Conference Proceedings, 2013
[6] Cengizhan M. Dikmen, Sibel Cimen and Gonca Cakir, “ Planar Octagonal- shaped UWB antenna with Reduced Radar Cross Section”, IEEE Transactions on Antenna and Propagation, Vol. 62, No. 6, June 2014.
[7] Y. Li, H. Zhang, Y. Fu, and N. Yuan, “RCS reduction of ridged waveguide slot antenna array using EBG radar absorbing material,” IEEE Antennas Wireless Propag. Lett., vol. 7, pp. 473–476, 2008
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References
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