Paper Info
Title
A Reactance Compensated Three-Device Doherty Power Amplifier for Bandwidth and Back-Off Range Extension.
Abstract
This paper proposes a new broadband Doherty power amplifier topology with extended back-off range. A shunted lambda/4 short line or lambda/2 open line working as compensating reactance is introduced to the conventional load modulation network, which greatly improves its bandwidth. Underlying bandwidth extension mechanism of the proposed configuration is comprehensively analyzed. A three-device Doherty power amplifier is implemented for demonstration based on Cree's 10 W HEMTs. Measurements show that at least 41% drain efficiency is maintained from 2.0 GHz to 2.6 GHz at 8 dB back-off range. In the same operating band, saturation power is larger than 43.6 dBm and drain efficiency is higher than 53%.
Year
DOI
Venue
2018
10.1155/2018/8418165
WIRELESS COMMUNICATIONS & MOBILE COMPUTING
Field
DocType
Volume
Reactance,Computer science,Bandwidth extension,Computer network,Broadband,Modulation,Bandwidth (signal processing),Drain efficiency,Electrical engineering,Amplifier
Journal
2018
ISSN
Citations 
PageRank 
1530-8669
0
0.34
References 
Authors
1
4
Name
Order
Citations
PageRank
Shichang Chen192.75
Weiwei Wang2216.84
Kuiwen Xu327.49
Gaofeng Wang42410.09