@INPROCEEDINGS {15222,
author={J. R. Reis and Zaid Al-Daher Al-Daher and Nigel Copner Copner and Akram Hammoudeh Hammoudeh and R. F. S. Caldeirinha and T.  Fernandes},
doi={0},
booktitle={Loughborough Antennas and Propagation Conf. – LAPC},
title={Two-Dimensional Transmitarray Beamsteering Using Stacked Tunable Metamaterials},
year={2014},
month={November},
volume={1},
pages={495-499} 
}