REVIEW OF FRACTAL TECHNIQUES FOR DESIGNING MICROSTRIP PATCH ANTENNA FOR X BAND
Hybrid Multiband fractal Antenna
1. Lovely Professional university
Hybrid fractal Microstrip patch
Antenna
Under the Guidance of :- Presented by :-
Mr. Madhusudhan Guard Anushant sharma
2. Concepts of Antenna
Definition of Antenna:-
• Antenna is a device which can excite the space with electro-
magnetic waves on an apply of appropriate energy to it.
• We can also say a device which convert the electrical energy
into Radio waves and vice versa.
Origin of Antenna:- Michael Faradays was the British
scientist who had found the wonderful electromagnetic waves
in 1830. He had given the famous electromagnetic law of
induction.
4. Hybrid Multiband fractal patch
Antenna
• Objectives :-
• Why we need Micro strip patch Antenna.
• Contribution of substrate in the patch Antenna.
• Effects of slot on the Patch Antenna.
• Importance of Fractal shapes.
• Role of various Antenna feeding methods.
• How we get Multiband antenna.
• Work in Dissertation.
5. Objectives of designed Antenna
• Radiate on the ultra wide band frequency.
• Increase the directivity of the antenna.
• Decreases the loss factors.
• Efficiency .
6. Advantages of Microstrip patch
Antenna
• Micro-strip Antenna has very small in size.
• Use for multipath models.
• Less size but high coverage .
• Mount any where.
• Better Radiation parameters.
• Due to this mounting capability it is used on
the helmets wallet, notebooks like antenna
circuits and many more.
17. Why Slots on patch ?
• effect of slots on patch change the V.S.W.R ,
Return loss of the radiated antenna.
• We have seen by varying the slot length and
width the resonant frequency shifted downwards
and antenna gain decrease drastically.
• Using the slots also increase the bandwidth of the
Antenna.
• A simple cut on patch change the path of the
current and it change the bandwidth.
22. Literature Review
[1]Dincer nalban toglu
We have notice In this paper the author have studied the concept of multiband patch antenna This
paper gives the simulations results at 0.9Ghz,2.4Ghz,5.2Ghz. It means the antenna resonate on
these freuencies. It has used the substrate FR4 with dielectric having permittivity 4.6.
[2]sucheta yadav and pramod patel
In this paper author has describe the effects of changing the dielectric constant and some
remaining parameters like the thickness of the substrate , resonating freuency.
[3]Prajakta b.Jadhav
This paper has described different different shapes of the antenna.like E-shape, H , key type
antenna .
[4]springer chaucer
In this paper the author has designed the suare shaped patch on the substrate. Design
implemented with HFSS(ansoft ). Probe feedinfg techniques , resonate freuencies -6.58Gh, 8.62Gh,
9.2Ghz.Author has presents the calculations on derectivity, gain, return loss parameters
23. [5]Amanpreet kaur
This paper describe the concepts of fractals on the patch. The author has shown different basic
fractal shapes like sierpinski carpet ,koch curve , sierpinski gasket . Author has shown different basic
fractal shapes .
[6]Jagtar singh sivia
In this author has designed the sierpinski gasket antenna with FR-4 epoxy substrate and has a return
loss of -15.87 at the 5.57 Ghz. The author has shown his work on the x-band mainly on high
freuency . The return loss will decrease he with perfect impedance matching at the patch .
[7]Ali w. azim
In this paper we have studied the effect of current distribution. This paper presents the novel way
to get the end fire radiation patterusing microstrip patch antenna.
[8]Jagdish .M.Rathore
conducted a study of different feeding techniues are using in the micro strip patch antenna . The
author has work on the various feeding techniues are using in the micro strip patch antenna . The
author has work on the various feeeding techniques like co axial probe feed , line feed .
27. Capabilities of the designed Antenna.
• Multiband Antenna.
• Resonate on three frequencies.
• Use in ISM band .
• Mount any where.
• Adaptability.
28. Future scope of the Implemented
Antenna design
A novel single probe feed triple band circularly polarized
Koch asymmetrical fractal boundary antenna with rotated
fractal slot has been proposed and experimentally studied.
Asymmetrical Koch single band CP, rectangular, fractal
slotted antennas for multiband operation are studied. By
optimizing rotation angle and feed point of the fractal slot,
multiband CP radiation is achieved. The parameters of the
fractal slot are optimized for better tri-band operation. The
proposed Ant 4 covers WLAN (2.4 and 5.8 GHz)
29. References
• Y. Sung, “Dual-band circularly polarized pentagonal slot antenna,”
• IEEE Antennas Wireless Propag. Lett., vol. 10, pp. 259–261, 2011.
• K. P.Yang and K. L.Wong, “Dual-band circularly-polarized square
• microstrip antenna,” IEEE Trans. Antennas Propag., no. 3, vol. 49, pp.
• 377–382, 2001.
• H. Zhai, Z. Ma, Y. Han, and C. Liang, “A compact printed antenna for
• triple-band WLAN/WiMAX applications,” IEEE Antennas Wireless
• propag. Lett., vol. 12, pp. 65–68, 2013.
• X-S. Ren, Y-Z. Yin, W. Hu, Y-Q. Wei, “Compact tri-band rectangular
• ring patch antenna with asymmetrical strips for WLAN/WiMAX
• applications,” Journal of Electromagn. Waves Appl., vol. 24, pp. 1829–
• 1838, 2010.
• Tze-Hsuan Chang and Jean-Fu Kiang, “Compact multi-band H-shaped
• slot antenna,” IEEE Trans. Antennas Propag., vol. 61, no. 8, pp. 4345-
