A digitally modulated polar CMOS power amplifier with a 20-MHz channel bandwidth

FREE-DOWNLOAD A Kavousian, DK Su, M Hekmat… – Solid-State Circuits, …, 2008 –

Abstract—This paper presents a CMOS RF power amplifier that employs a digital polar architecture
to improve the overall power efficiency when amplifying signals with high linearity require-
ments. The power amplifier comprises 64 parallel RF amplifiers that are driven by a