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International Journal of Antennas and Propagation
Volume 2019, Article ID 6732758, 8 pages
https://doi.org/10.1155/2019/6732758
Research Article

Ultra-Wideband Dielectric Lens Antennas for Beamsteering Systems

1Faculty of Electrical Engineering, Federal University of Uberlândia (UFU), Padre Pavoni Street 294, 38701-002 Patos de Minas, Minas Gerais, Brazil
2Federal University of Itajubá (UNIFEI), Benedito Pereira dos Santos Avenue 1303, 37500-903 Itajubá, Minas Gerais, Brazil
3Inatel Competence Center, National Institute of Telecommunications (INATEL), João de Camargo Avenue 510, 37540-000 Santa Rita do Sapucaí, Minas Gerais, Brazil

Correspondence should be addressed to Renan Alves dos Santos; rb.ufu@snaner

Received 15 April 2019; Revised 10 June 2019; Accepted 28 June 2019; Published 6 August 2019

Academic Editor: Giorgio Montisci

Copyright © 2019 Renan Alves dos Santos 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

This paper presents a high-directivity ultra-wideband beamsteering antenna array. An innovative beamsteering system based on hemispherical dielectric lenses fed by a set of different printed antennas is proposed. Diversity of signals in different spatial positions can be radiated at the same time. A prototype was manufactured and characterized, operating in a bandwidth varying from 8 GHz to 12 GHz with gain up to 13 dBi.