Broadband Doherty Power Amplifiers: Advances and Challenges (Invited Paper)

被引：0
|
作者：
Boumaiza, Slim [1 ]
Golestaneh, Hamed [1 ]
Abadi, Mehdi Naseri Ali [1 ]
Mohamed, Ahmed M. M. [1 ]
Wu, David Y. [1 ]
机构：
[1] Univ Waterloo, Dept Elect & Comp Engn, EmRG Res Grp, Waterloo, ON N2L 3G1, Canada
来源：
2014 IEEE 15TH ANNUAL WIRELESS AND MICROWAVE TECHNOLOGY CONFERENCE (WAMICON) | 2014年
关键词：
Doherty power amplifier; high peak-to-average power ratio signals; multi-band multi-standard communication transmitters; EFFICIENCY; DESIGN;
D O I：
暂无
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
this paper expounds on the recent advancements in the area of broadband Doherty power amplifiers (DPA). It begins by outlining the major sources of performance limitations in DPAs when employed to efficiently amplify multi-band signals scattered over extended frequency bandwidth. It goes on to describe a number of novel techniques devised to broaden the bandwidth of classical two-way DPAs. Finally, a broadband three-way DPA is introduced as a potential solution to efficiently amplify signals with extended peak to average power ratios. Measurement results obtained using a number of broadband DPA demonstrators are reported.
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页数：6
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