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International Journal of Antennas and Propagation
Volume 2013 (2013), Article ID 476878, 9 pages
http://dx.doi.org/10.1155/2013/476878
Research Article

Multiobjective-Optimized Design of a New UWB Antenna for UWB Applications

1Department of Electromagnetism, University of Granada, Avenida Fuentenueva sn, 18071 Granada, Spain
2Department of Electric and Electronic Engineering, University of Stellenbosch, Matieland 7602, South Africa

Received 20 November 2012; Revised 6 March 2013; Accepted 7 March 2013

Academic Editor: Michael Yan Wah Chia

Copyright © 2013 C. Moreno de Jong van Coevorden 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.

Abstract

A multiobjective genetic algorithm has been applied to design a new printed, bow-tie antenna for ultrawideband applications, that is, ground penetrating radar, short range and high data rate communications, and so forth. The ultrawideband performance with respect to antenna impedance and gain is achieved by an optimized resistive loading profile and flare angle. A low-cost prototype is manufactured and numerical simulations are validated with measurements.