Circuits and System Design of RF Polar Transmitters Using Envelope-Tracking and SiGe Power Amplifiers for Mobile WiMAX.
Yan LiJerry LopezDonald Y. C. LieKevin ChenStanley WuTzu-Yi YangGin-Kou MaPublished in: IEEE Trans. Circuits Syst. I Regul. Pap. (2011)