A 6W uneven Doherty power amplifier in GaN technology

被引：0
|
作者：
Markos, A. Z. [1 ]
Colantonio, P. [2 ]
Giannini, F. [2 ]
Giofre, R. [2 ]
Imbimbo, M. [2 ]
Kompa, G. [1 ]
机构：
[1] Univ Kassel, Dept High Freq Tech, Wilhelmshoeher Allee 73, D-34121 Kassel, Germany
[2] Univ Roma Tor Vergata, Dept Elect Engn, I- 00133 Rome, Italy
来源：
2007 EUROPEAN MICROWAVE INTEGRATED CIRCUITS CONFERENCE, VOLS 1 AND 2 | 2007年
关键词：
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：
In this paper the design of a 6W uneven GaN Doherty power amplifier is presented. The Doherty PA is designed to achieve high efficiency for modulated signals with high peak to average power ratio used in modern wireless communication systems. The Doherty amplifier has been designed using two equal sized GaN devices for the Main Class A-B and Peaking Class C amplifiers. An uneven power divider is used at the input to deliver more input power to the Peaking amplifier than the Main amplifier. The measured maximum output power of the realised uneven Doherty is 38 dBm with 60% of peak power added efficiency (76% of drain efficiency). The power added (drain) efficiency is higher than 52% (62%) up to 6 dB of back off, or 42% (45%) up to 10 dB of back off.
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页码：165 / +
页数：2
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