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The Scientific World Journal
Volume 2014, Article ID 391602, 5 pages
Research Article

Fabrication of CPW-Fed Fractal Antenna for UWB Applications with Omni-Directional Patterns

1Department of Electrical Engineering, Urmia Branch, Islamic Azad University, Urmia 5717114653, Iran
2Department of Electrical Engineering, Naghadeh Branch, Islamic Azad University, Naghadeh, Iran
3Department of Electrical Engineering, Miandoab Branch, Islamic Azad University, Miandoab, Iran

Received 5 August 2013; Accepted 10 December 2013; Published 3 February 2014

Academic Editors: H. Lee and J.-K. Xiao

Copyright © 2014 Tohid Sedghi et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Novel and compact CPW-fed antennas are proposed comprised of a fractal patch and modified ground-plane. The ground-plane is truncated at the center and includes dielectric notches at its side to enhance the antenna’s impedance bandwidth. The dimensions of the notches effectively control the upper and lower band edges of the antenna. The optimized antenna operates across 2.95–12.81 GHz for  dB. Omnidirectional radiation pattern is achieved over the full UWB frequency range. The miniaturized antenna has a total size of  mm3. The characteristics of the proposed antenna are suitable for UWB wireless communication requiring low profile antennas.