Title :
High-Efficiency Doherty Power Amplifiers: Historical Aspect and Modern Trends
Author_Institution :
West Chester, PA, USA
Abstract :
This article presents a thorough description of Doherty power amplifier design and operation. The following are also highlighted: overview of the modern trends using Doherty techniques for multistage and asymmetric multiway structure; the basic operation principle of a conventional Doherty power amplifier is analysed and described; asymmetric N-way Doherty amplifier; and the design on implementing the transmission-line two-stage Doherty amplifier into a monolithic microwave integrated circuit (MMIC) using a pHEMT or CMOS process.
Keywords :
CMOS analogue integrated circuits; field effect MMIC; high electron mobility transistors; power amplifiers; CMOS process; Doherty technique; asymmetric N-way Doherty amplifier; asymmetric multiway structure; conventional Doherty power amplifier; high-efficiency Doherty power amplifier; monolithic microwave integrated circuit; pHEMT; transmission line two-stage Doherty amplifier; Broadband; Communication systems; Electron tubes; History; Integrated circuits; Microwave circuits; Power amplifiers; Power generation; Special issues and sections; Wireless communication;
Journal_Title :
Proceedings of the IEEE
DOI :
10.1109/JPROC.2012.2219195
