A Self-Similar Fractal Cantor Antenna for MICS Band Wireless Applications


Low profile antenna in communication is a new methodology. Fractal geometry is a methodology through which size reduction is achieved. A Self-similar fractal antenna using multicantor technique is proposed and experimentally studied. Space-filling cantors and self-similarity properties of fractal geometry have been adopted in the proposed antenna to miniaturize the size of antenna. The antenna is designed in such a way to operate at MICS band (Medical Implant communication Service) for wireless telemedicine application. The prototype antenna exhibits wideband characteristics and provides a good agreement of return loss (S11). Experimental return loss has been compared with that which is obtained using method of moments. The objective of using self-similar concept in antenna makes it flexible in terms of controlling the resonance and bandwidth. In this paper, the Self-similar property of fractal geometry is examined by maintaining return loss (S11) more than –30 dB approximately in all the iterations (n) and the prototype antenna has return loss greater than –10 dB and exhibits wideband characteristics.

Share and Cite:

G. Srivatsun, S. Rani and G. Krishnan, "A Self-Similar Fractal Cantor Antenna for MICS Band Wireless Applications," Wireless Engineering and Technology, Vol. 2 No. 2, 2011, pp. 107-111. doi: 10.4236/wet.2011.22015.

Conflicts of Interest

The authors declare no conflicts of interest.


[1] B. Mandelbrot, “Fractals: Form, Chance, and Dimension,” W.H. Freeman and Company, San Francisco, 1997.
[2] M. F. Barnsley, “Fractals Everywhere,” 2nd Edition, Aca- demic Press, San Diego, 1993.
[3] H. O. Peitgen, H. Jurgens and D. Saupe, “Chaos and Fra- ctals,” New Frontiers in Science, Springer-Verlag, New York, 1992.
[4] C. Punente, J. Romeu, R. Pous, X. Garcia and F. Benitez, “Fractal Multiband Antenna Based on the Sierpinski Gasket,” Electronic Letters, Vol. 32, No. 1, January 1996, pp. 1-2. doi:10.1049/el:19960033
[5] J. P. Gianvittoria and Y. Rahmat-Samii, “Fractal Anten- nas: A Novel Antenna Miniaturization Technique, and Applications,” IEEE Antennas and Propagation Magazine, Vol. 44, No. 1, February 2002, pp. 20-36. doi:10.1109/74.997888
[6] D. H. Werner and S. Ganguly, “An Overview of Fractal Antenna Engineering Research,” IEEE Antennas and Pro- pagation Magazine, Vol. 45, No. 1, February 2003, pp. 38-57. doi:10.1109/MAP.2003.1189650
[7] K. J. Vinoy, “Fractals Shaped Antenna Elements for Wide Band Multiband Wireless Applications,” Ph.D., Disserta- tion, Department of Electrical Engineering, Pennsylvania State University, University Park, 2002.
[8] J. C. Liu, C. Y. Wu, D. C. Chang and C. Y. Liu, “Rela- tionship between Sierpenski Gasket and Apollonian Pac- king Monopole Antennas,” Electronics Letters, Vol. 42, No. 15, July 2006, pp. 847-848. doi:10.1049/el:20061123
[9] T. K. Lo and Y. Hwang, “Microstrip Antennas of Very High Permittivity for Personal Communications,” Procee- dings of Asia Pacific Microwave Conference, Hong Kong, 2-5 December 1997, pp. 253-256.
[10] R. A. Sainati, “CAD of Microstrip Antennas for Wireless Applications,” Artech House, Norwood, 1996.
[11] H. Y. Wang and M. J. Lancaster, “Aperture-Coupled Thin-Film Superconducting Meander Antennas,” IEEE Transactions on Antennas and Propagation, Vol. 47, No. 5, 1999, pp. 829-836. doi:10.1109/8.774137
[12] P. E. Mayes, “Frequency-Independent Antenna and Broad- Band Derivatives thereof,” Proceedings of IEEE, Vol. 80, No. 1, 1992, pp. 103-112. doi:10.1109/5.119570
[13] C. Puente, J. Romeu, R. Pous and A. Carma, “On the Behaviour of the Sierpinski Multiband Fractal Antenna,” IEEE Transactions on Antennas and Propagation, Vol. 46, No. 4, 1998, pp. 517-524. doi:10.1109/8.664115
[14] I.-K. Kim, J.-G. Yook and H.-K. Park, “Fractal-Shape Small Size Microstrip Patch Antenna,” Microwave and Optical Technology Letters, Vol. 34, No. 1, July 2002, pp. 15-17. doi:10.1002/mop.10359
[15] S. N. Sinha and M. Jain, “A Self-Affine Fractal Multi- band Antenna,” IEEE Antennas Wireless Propagation Letters, Vol. 6, No. 11, 2007, pp. 110-112. doi:10.1109/LAWP.2007.891519
[16] G. Kumar and K. P. Ray, “Broadband Microstrip Antenna,” Artech House, Norwood, 2003.

Copyright © 2023 by authors and Scientific Research Publishing Inc.

Creative Commons License

This work and the related PDF file are licensed under a Creative Commons Attribution 4.0 International License.