DocumentCode
171578
Title
A wideband Sequential Power Amplifier
Author
Merrick, B. ; King, Jacob ; Brazil, Thomas J.
Author_Institution
RF & Microwave Res. Group, Univ. Coll. Dublin, Dublin, Ireland
fYear
2014
fDate
1-6 June 2014
Firstpage
1
Lastpage
3
Abstract
In this work, a wide bandwidth Sequential Power Amplifier (SPA) is demonstrated for the first time. Using wideband and high efficiency 10W and 45W amplifiers, an SPA is described, capable of delivering high efficiency at back-off without the bandwidth limitations of the traditional Doherty PA. Measurement results of the implemented amplifier are presented, with an average back-off drain efficiency of 59% achieved between 1.45 GHz and 2.4 GHz, and a peak back-off drain efficiency of 65% at 1.7 GHz.
Keywords
UHF power amplifiers; wideband amplifiers; average back-off drain efficiency; efficiency 59 percent; efficiency 65 percent; frequency 1.45 GHz; frequency 1.7 GHz; frequency 2.4 GHz; high-efficiency amplifier; peak back-off drain efficiency; power 10 W; power 45 W; wide-bandwidth SPA; wideband sequential power amplifier; Couplers; Field programmable gate arrays; IEEE Xplore; Radio frequency; Rain; Broadband; high efficiency; power amplifiers (PAs);
fLanguage
English
Publisher
ieee
Conference_Titel
Microwave Symposium (IMS), 2014 IEEE MTT-S International
Conference_Location
Tampa, FL
Type
conf
DOI
10.1109/MWSYM.2014.6848592
Filename
6848592
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