Arrays of Dual-Band Printed Dipoles Loaded with Metamaterial Particles

Conference: EuCAP 2009 - 3rd European Conference on Antennas and Propagation
03/23/2009 - 03/27/2009 at Berlin, Germany

Proceedings: EuCAP 2009

Pages: 5Language: englishTyp: PDF

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Herraiz-Martínez, F. J.; García-Muñoz, L. E.; Segovia-Vargas, D. (Radio-Frequency Group, Department of Signal Theory and Communications, Carlos III University in Madrid, Avenida de la Universidad 30, 28911, Leganés, Madrid, Spain)
González-Ovejero, D.; Craeye, C. (Communications Department, Université Catholique de Louvain, Belgium)

Arrays of printed dipoles loaded with metamaterial particles are presented in this paper. The use of these loaded dipoles can improve the features of the arrays. Two applications are proposed: the miniaturization of the array and the bandwidth broadening. Moreover, a novel implementation of the dipoles loaded with metamaterial particles is proposed. In this case, the dipoles are loaded with a modified version of the Ω particles. An example of a dual-band miniaturized dipole is shown. Finally, a log-periodic array of two Ω-loaded dipoles is designed, simulated, manufactured and measured. Experimental results show that the bandwidth is increased from 52.4 %, which is obtained with the conventional array, to 62.8%.