Design of linear and efficient power amplifiers by generalization of the Doherty theory
Konferensbidrag (offentliggjort, men ej förlagsutgivet), 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.

energy efficiency

wireless communication

linearity

Power amplifiers

gallium-nitride

Författare

Christian Fager

GigaHertz Centrum

Chalmers, Mikroteknologi och nanovetenskap (MC2), Mikrovågselektronik

William Hallberg

Chalmers, Mikroteknologi och nanovetenskap (MC2), Mikrovågselektronik

MUSTAFA ÖZEN

GigaHertz Centrum

Chalmers, Mikroteknologi och nanovetenskap (MC2), Mikrovågselektronik

K. Andersson

Ericsson AB

Koen Buisman

GigaHertz Centrum

Chalmers, Mikroteknologi och nanovetenskap (MC2), Mikrovågselektronik

David Gustafsson

Ericsson AB

Ämneskategorier

Elektroteknik och elektronik

DOI

10.1109/PAWR.2017.7875565

Mer information

Senast uppdaterat

2018-11-19