Design of linear and efficient power amplifiers by generalization of the Doherty theory
Paper in proceeding, 2017
The Doherty power amplifier (PA) is now established as one the most widely adopted architectures for enhancement of energy efficiency in wireless communication transmitters. More than 80 years after its invention, most of today's implementations still rely on the original circuit topology. This paper describes a new Doherty solution continuum that is revealed when the original λ/4 combiner is replaced by a generic, analytically derived, lossless combiner network. As a result, novel Doherty PA solutions that in practice are both more efficient and more linear are enabled. A variety of practical design examples are included to illustrate how the presented techniques can enable enhanced performance in both traditional and emerging mm-wave 5G wireless communication transmitter applications.
gallium-nitride
linearity
Power amplifiers
energy efficiency
wireless communication
Author
[Person 73654e57-e620-4add-a8b6-dfbd5220a294 not found]
Chalmers, Microtechnology and Nanoscience (MC2), Microwave Electronics
GigaHertz Centre
[Person a41ee985-4c7e-4e84-9512-65d79019749c not found]
Chalmers, Microtechnology and Nanoscience (MC2), Microwave Electronics
[Person 3782329f-955b-4255-9a06-12e79b6c3d3c not found]
GigaHertz Centre
Chalmers, Microtechnology and Nanoscience (MC2), Microwave Electronics
[Person 5be2fa88-8f7b-4e44-af90-68c22e8b62a6 not found]
Ericsson
[Person 60753017-f181-4fbb-a096-dcc958748184 not found]
Chalmers, Microtechnology and Nanoscience (MC2), Microwave Electronics
GigaHertz Centre
[Person 8ecae0e4-e1d8-4b14-ace3-640971a83494 not found]
Ericsson
Proceedings of the 2017 IEEE Topical Conference on Power Amplifiers for Wireless and Radio Applications
29-32 7875565
978-150903457-4 (ISBN)
2017 IEEE Topical Conference on Power Amplifiers for Wireless and Radio Applications, PAWR 2017
Phoenix, USA,
Phoenix, USA,
Subject Categories (SSIF 2011)
Electrical Engineering, Electronic Engineering, Information Engineering
DOI
10.1109/PAWR.2017.7875565