@ARTICLE {30506,
author={M. Jordão and D.  Belo and R. F. S. Caldeirinha and A. Oliveira and N.B.C. Carvalho},
doi={10.1049/mia2.12078},
journal={IET Microwaves, Antennas and Propagation},
title={Active reflection coefficients characterization system for multiple input multiple output antennas},
year={2021},
month={March},
volume={15},
number={5},
pages={511-520},
ISSN={1751-8725}
}