Figure 1. Schematic of a Doherty PA Techniques such as Doherty amplifier structures extend high-efficiency device operation to lower power levels, allowing for significantly improved average PA ...

The Doherty Amplifier is used in an increasing number of radio transmitter applications to improve energy efficiency. This paper begins with an overview of Linearization and Efficiency Enhancement ...

Power amplifiers (PAs) form a critical component in contemporary wireless communication systems. Advances in CMOS and SiGe technologies have revolutionised PA design, enabling high levels of ...

for enhanced efficiency in a very wide band range. Its efficiency rating of 600MHz above 3GHz was the world’s widest level as of January 12, 2017.