Ultra High Efficiency Microwave Power Amplifier for Wireless Power Transmission

被引：0
|
作者：
Honjo, Kazuhiko [1 ]
Ishikawa, Ryo [1 ]
Takayama, Yoichiro [1 ]
机构：
[1] Univ Electrocommun, Adv Wireless Commun Res Ctr, Tokyo, Japan
来源：
2012 42ND EUROPEAN MICROWAVE CONFERENCE (EUMC) | 2012年
关键词：
High Efficiency Amplifier; Wireless Power Transmission; GaN HEMT; class-F; inverse class-F; HEMT;
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：
Realizing ultra-high-efficiency power amplifiers operating at 5.8 GHz is a key issue for wireless power transmission such as space solar-power satellite systems and wireless smart-grid short-distance power supply systems. To achieve ultra-high efficiency, current and voltage waveform control is indispensable to eliminate power dissipations at the harmonic frequencies and to keep a balance between the supplied DC power and the 5.8-GHz output power. This paper reports optimized design techniques, including class-F, inverse class-F, and reactive harmonic load amplifiers. The developed GaN HEMT amplifier delivered a record-high drain efficiency of 90% and a power-added efficiency (PAE) of 79%.
引用
收藏
页码：1339 / 1342
页数：4
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