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International Journal of Antennas and Propagation
Volume 2009, Article ID 519850, 7 pages
http://dx.doi.org/10.1155/2009/519850
Research Article

Cylindrical Dielectric Resonator Antennas with Harmonic Control as an Active Antenna Radiator

1Department of Electronics and Telecommunications, University of Florence, Via C. Lombroso 6/17 - 50137 Firenze, Italy
2Department of Information Engineering, University of Pisa, Via G. Caruso 16, 56126 Pisa, Italy

Received 30 September 2008; Accepted 19 January 2009

Academic Editor: Giovanni Toso

Copyright © 2009 L. Lucci 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 cylindrical dielectric resonator antenna is proposed as a radiator for an active integrated antenna. Harmonic tuning, which is the key step in designing active antenna radiators, is achieved via a combination of shape factor control over the resonator and insertion of reactive elements in the feed system. Numerical simulations are carried out in a finite elements framework and a layout for the complete antenna is proposed, aimed at compactness for subsequent utilization of the radiator as an element in an active array for satellite communications.