@INPROCEEDINGS {15886,
author={J. C. Pedro and L. C. Nunes},
doi={0},
booktitle={IEEE International Symp. on Microwave Theory and Tech.},
title={Efficiency dependence on the load-pull ratio of a Doherty PA},
year={2014},
month={June},
volume={1},
pages={1-4} 
}