Design of linear and efficient power amplifiers by generalization of the Doherty theory
Paper i 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
Författare
Christian Fager
Chalmers, Mikroteknologi och nanovetenskap, Mikrovågselektronik
Gigahertzcentrum
William Hallberg
Chalmers, Mikroteknologi och nanovetenskap, Mikrovågselektronik
MUSTAFA ÖZEN
Gigahertzcentrum
Chalmers, Mikroteknologi och nanovetenskap, Mikrovågselektronik
K. Andersson
Ericsson AB
Koen Buisman
Chalmers, Mikroteknologi och nanovetenskap, Mikrovågselektronik
Gigahertzcentrum
David Gustafsson
Ericsson AB
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,
Ämneskategorier
Elektroteknik och elektronik
DOI
10.1109/PAWR.2017.7875565