Efficiency Boosting of Multilevel LINC Transmitter

被引：0
|
作者：
Aref, Ahmed F. [1 ]
Askar, AbdelRahman [1 ]
Werner, Sergej [1 ]
Pozdniakov, Dimitri [1 ]
Kalim, Danish [1 ]
Negra, Renato [1 ]
机构：
[1] Rhein Westfal TH Aachen, Mixed Signal CMOS Circuits, UMIC Res Ctr, Aachen, Germany
来源：
ASIA-PACIFIC MICROWAVE CONFERENCE 2011 | 2011年
关键词：
Outphasing transmitter; LINC; Multilevel LINC; Power Added Efficiency (PAE);
D O I：
暂无
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 multilevel output outphasing transmitter has been developed to boost efficiency considerably over regular LINC transmitter. The system consists of four identical class-E power amplifiers (PAs) in hybrid design operating at 3.3 GHz and delivering a peak output power of 40.5 dBm. By controlling the supply voltage of the four PA units a fully symmetrical multilevel outphasing behaviour can be achieved with a power added efficiency (PAE) enhancement over a range of more than 25 dB of output power back-off. By comparing system measurement results with conventional outphasing transmitter a peak PAE enhancement of 33 % points and a maximum DC power saving of 21 Watts were achieved.
引用
收藏
页码：127 / 130
页数：4
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