Paper Info
Title
A Design Strategy for AM/PM Compensation in GaN Doherty Power Amplifiers.
Abstract
This paper presents the theoretical analysis of phase distortion (AM/PM) mechanisms in Gallium Nitride (GaN) Doherty power amplifiers (DPAs) and a novel approach to optimize the tradeoff between linearity and efficiency. In particular, it is demonstrated how it is possible to mitigate the AM/PM by designing a suitable mismatch at the input of the active devices, based on the identification of constant AM/PM and gain contour circles. The proposed theory is experimentally confirmed by source-and load-pull measurements and further validated through the design and realization of a 7 GHz 10 W DPA based on GaN monolithic technology.
Year
DOI
Venue
2017
10.1109/ACCESS.2017.2759164
IEEE ACCESS
Keywords
Field
DocType
Doherty power amplifiers,gallium nitride,linearity,electronically tunable networks
Gallium nitride,Design strategy,Computer science,Load modeling,Linearity,Impedance matching,Phase distortion,Electrical engineering,Active devices,Amplifier
Journal
Volume
ISSN
Citations 
5
2169-3536
0
PageRank 
References 
Authors
0.34
0
8
Name
Order
Citations
PageRank
Vittorio Camarchia101.35
Paolo Colantonio200.68
Franco Giannini322.42
rocco giofre412.85
Tao Jiang500.34
marco pirola621.53
Roberto Quaglia700.34
chiara ramella821.87