An overview of efficiency enhancements with application to linear handset power amplifiers

被引：15
作者：
Staudinger, J [1 ]
机构：
[1] Motorola Inc, Semicond Prod Sector, Tempe, AZ USA
来源：
2002 IEEE RADIO FREQUENCY INTEGRATED CIRCUITS (RFIC) SYMPOSIUM, DIGEST OF PAPERS | 2002年
关键词：
D O I：
10.1109/RFIC.2002.1011507
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A consequence of high spectral efficiency provided by second and third generation cellular systems is the requirement for linear power amplifiers in the transmitter unit of the mobile handset. The battery nature of the mobile phone emphasizes high amplifier efficiency for extending talk time and battery life. This represents an inherent trade-off between amplifier efficiency and linearity. Recent efforts have focused on considering alternative approaches with the goal of improving the efficiency/linearity performance trade-off compared to traditional single-ended Class A/B topologies. Some alternative approaches are examined here.
引用
收藏
页码：45 / 48
页数：4
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