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Analysis on Fractal Antennas at Microwave Frequencies

V. M. Unadkat, V.V. Dwivedi, A.M. Kothari


The rapid growth of wireless technologies has drawn new demands for integrated components including antennas. In recent wireless communication systems, wide bandwidth, multiband and low profile antennas which can be mounted on a flat surface, are in great demand for both commercial and military applications. Telecom operators are also demanding for the antennas, which are multiband or reconfigurable to other operating frequencies as and when needed. One of the promising solution for all these demands is fractal antenna. Fractals have self-similarity property, and are generally composed of many copies of themselves at different scales. These unique properties of fractals have been exploited in order to make a new type of multiband compact size of antenna designs. Fractal elements and arrays are also ideal candidates for use in reconfigurable systems. This paper gives insight of various geometries of fractal antennas that are available in the market, various researches that have been done on Sierpinski carpet and Sierpinski gasket antennas


Fractal, Types of Fractal, Fractal Geometry, Multiband, Bandwidth, Reflection Coefficient

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B. B. Mandelbrot, “The Fractal Geometry of Nature”, New York, W. H. Freeman, 1983.

C. Puente-Baliarda, J. Romeu, R. Pous, and A. Cardama, ‘‘On the behavior of the Sierpinski multiband fractal antenna,’’ IEEE Trans. Antennas Propag., vol. 46, no. 4, pp. 517--524, Apr. 1998.

Ghani, C.Z.C.; Wahab, M.H.A.; Abdullah, N.; Hamzah, S.A.; Ubin, A.; Dahlan, S.H.; Anuar, A.K.; Ramli, K.N.; Alwi, M.F., "Design Sierpinski Gasket Antenna for WLAN Application," Microwave Conference, 2007. APMC , Asia-Pacific , pp.1,4, 11-14 Dec. 2007 “WEB site of Fractal Antenna Systems, Inc.”

Douglas H. Werner and Suman Ganguly, “An Overview of Fractal Antenna engineering Research”, IEEE Antennas and Propagation Magazine, Vol 45, No 1, February 2003.

W.L. Chen and G.M. Wang, “Small size edge-fed Sierpinski carpet microstrip patch antenna”, PIERS C, Yol.3, 195-202, 2008.

S. Sheik Mohammed, K. Ramasamy, and T. Shanmuganantham, “A 2.45GHz Sierpinski Carpet Edge-fed Microstrip Patch Fractal Antenna for WPT Rectenna” IEEE International Conference on Communication Control and Computing Technologies (ICCCCT), pp.57,60, 7-9 Oct. 2010

Yao Na and Shi Xiao-wei, “Analysis of multiband behavior on sierpinski carpet fractal antennas”, Microwave Conference Proceedings, 2005. APMC 2005. Asia-Pacific Conference Proceedings, vol.4, Dec. 2005.

Kalaimani, T.; Venkatesh, P.M.; Mohanamurali, R.; Shanmuganantham, T., "A modified Sierpinski carpet fractal antenna for wireless applications," International Conference on Communications and Signal Processing (ICCSP), 2013, pp.722-725, 3-5 April 2013.

Hussain, R.; Sheikh, S., "Feed point optimization of a microstrip sierpinski carpet antenna," 3rd IEEE International Conference on Computer Science and Information Technology (ICCSIT), vol.5, pp.189-193, 9-11 July 2010.

Bin Shi; Zhiming Long; Jili Wang; Lixia Yang, "Design and analysis of a modified Sierpinski Carpet fractal antenna for UWB applications," Proceedings of the International Symposium on Antennas & Propagation (ISAP), vol.01, pp.99-102, 23-25 Oct. 2013

N. Saluja1, R. Khanna, “A Novel Method to Improve Current Density in Multiband Triangular Fractal Antenna”, ELEKTRONIKA IR ELEKTROTECHNIKA, ISSN 1392-1215, VOL. 18, NO. 10, 2012,

K. C. Huawng, “Dual-wideband monopole antenna using a modified half- sierpinski fractal gasket” IEEE Electronics Letters, vol. 45, no.10, pp. 487–489, 2009.

A. Falahati, M. Naghshvarin-Jahromi, R. M. Edwards, “Bandwidth enhancement and decreasing ultra-wideband pulse response distortion of Penta-Gasket-Koch Monopole antennas using compact-grounded co-planar wave guides”, IET Microwave antenna and propagation, vol. 5, no. 1, pp. 48–56, 2011.

H. Oraizi, S. Hedayati, “Miniaturized UWB monopole Microstrip antenna design by the combination of Giusepe peano and sierpinski Carpet fractals”, IEEE Antenna and wave propagation letters, vol. 10, pp. 67–70, 2011.

Y. J. Sung, “Bandwidth enhancement of a wide slot using fractal shaped sierpinski”, IEEE Transactions of Antennas and wave propagation, vol. 59, no. 8, pp. 3076–3079, 2011.

Zhang Hu; GuoBin Wan; ChangJie Sun; HuiLing Zhao, "Design of modified Sierpinski fractal antenna for multiband application," 3rd IEEE International Symposium on Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications, pp.655-658, 27-29 Oct. 2009

Ismail, K.; Ishak, S.H., "Sierpinski gasket fractal antenna with defected ground structure (DGS)," International Conference on ICT Convergence pp.441-446, 15-17 Oct. 2012

Tunti-a-longkarn, P.; Mahatthanajatuphat, C.; Akkaraekthalin, P., "Stacked fractal patch antennas using NP generator model,”. 9th International Symposium on Communications and Information Technology, , pp.1350-1353, 28-30 Sept. 2009

Mohd Fairus Mohd Yusof; Ikhwan Peranggi Pohan; Esa, M.; Noor Asniza Murad; Yap Eng Chuan, "Stacked Square Fractal Antenna with Improved Bandwidth for Wireless Local Area Network Access Point", RF and Microwave Conference., pp.228,232, 12-14 Sept. 2006


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