@ARTICLE {2061,
author={J.R. Costa and C. A. Fernandes},
doi={10.1109/LAWP.2007.900954},
journal={IEEE Antennas and Wireless Propagation Letters},
title={Broadband Slot Feed for Integrated Lens Antennas},
year={2007},
month={September},
volume={6},
number={},
pages={396-400},
ISSN={1536-1225}
}