A 1.9-GHz triple-mode class-E power amplifier for a polar transmitter

被引：17
|
作者：
Park, Changkun [1 ]
Kim, Younsuk
Kim, Haksun
Hong, Songcheol
机构：
[1] Korea Adv Inst Sci & Technol, Dept Elect Engn & Comp Sci, Taejon 305701, South Korea
[2] Hanbat Natl Univ, Taejon 305719, South Korea
来源：
IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS | 2007年 / 17卷 / 02期
关键词：
adaptive load; class-E; dynamic range; GSM; mode locking; polar transmitter;
D O I：
10.1109/LMWC.2006.890345
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 1.9-GHz CMOS power amplifier for polar transmitters was implemented with a 0.25-mu m radio frequency CMOS process. All the matching components, including the input and output transformers, were fully integrated. The concepts of mode locking and adaptive load were applied in order to increase the efficiency and dynamic range of the amplifier. The amplifier achieved a drain efficiency of 33% at a maximum output power of 28 dBm. The measured dynamic range was 34 dB for a supply voltage that ranged from 0.7 to 3.3 V. The measured improvement of the low power efficiency was 140% at an output power of 16 dBm.
引用
收藏
页码：148 / 150
页数：3
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