@INPROCEEDINGS {1136,
author={M. G. Silveirinha and C. A. Fernandes},
doi={},
booktitle={IEEE AP-S/URSI International Symp.},
title={Shaped Double-Shell Dielectric Lenses for Wireless Millimeter Wave Communications},
year={2000},
month={July},
volume={3},
pages={1674-1677} 
}