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International Journal of Antennas and Propagation
Volume 2008, Article ID 410786, 7 pages
http://dx.doi.org/10.1155/2008/410786
Research Article

UWB Directive Triangular Patch Antenna

1GET/Télécom Paris, CNRS UMR 5141, 46 rue Barrault, Paris Cedex 13 75634, France
2IETR, CNRS UMR 6164, Université de Rennes, Groupe Antennes et Hyperfréquences, Bâtiment 11D, Rennes Cedex 35042, France

Received 1 May 2007; Accepted 21 October 2007

Academic Editor: Dejan Filipovic

Copyright © 2008 A. C. Lepage 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

Compact directive UWB antennas are presented in this paper. We propose an optimization of the F-probe fed triangular patch antenna. The new design achieves an impedance bandwidth of 6 9 % (3–6.15 GHz) and presents good radiation characteristics over the whole impedance bandwidth. The average gain is 6.1 dB. A time-domain study has been performed to characterize the antenna behavior in case a UWB pulse is used. Finally, we propose an alternative solution to facilitate the manufacturing process using metallized foam technology. It also improves the robustness of the antenna as well as reducing its cost.