@INPROCEEDINGS {6337,
author={A Alù and  Edwards and M. G. Silveirinha and N. Engheta},
doi={},
booktitle={IEEE AP-S/URSI International Symp.},
title={Antennas in Epsilon-near-Zero Metamaterials Filling Narrow Waveguide Channels and Bends},
year={2008},
month={July},
volume={128.1},
pages={---} 
}