@INPROCEEDINGS {9065,
author={J.R. Costa and E.B. Lima and C. A. Fernandes},
doi={},
booktitle={IEEE AP-S/URSI International Symp.},
title={Antenna Phase Center Determination from Amplitude Measurements using a Focusing Lens},
year={2010},
month={July},
volume={1},
pages={1-4} 
}