MG Li, QR Wu, RY Shi - 2009 IEEE 8th International …, 2009 - ieeexplore.ieee.org
In this work, a 2.4 GHz Doherty power amplifier with a on-chip active balun is presented by
using the SMIC CMOS 0.18 µm technology. With the employment of this balun, the bulky …