X-band inverse class-F GaN internally-matched power amplifier  

作　　者：赵博超 卢阳 韩文哲 郑佳欣 张恒爽 马佩军 马晓华 郝跃 

机构地区：[1]School of Microelectronics, Xidian University, Xi'an 710071, China [2]School of Advanced material and Nanotechnology, Xidian University, Xi'an 710071, China

出　　处：《Chinese Physics B》2016年第9期528-532,共5页中国物理B（英文版）

基　　金：Project supported by the National High Technology Research and Development Program of China(Grant No.2015AA016801)

摘　　要：An X-band inverse class-F power amplifier is realized by a 1-mm Al Ga N/Ga N high electron mobility transistor（HEMT）.The intrinsic and parasitic components inside the transistor,especially output capacitor Cds,influence the harmonic impedance heavily at the X-band,so compensation design is used for meeting the harmonic condition of inverse class-F on the current source plane.Experiment results show that,in the continuous-wave mode,the power amplifier achieves 61.7% power added efficiency（PAE）,which is 16.3% higher than the class-AB power amplifier realized by the same kind of HEMT.To the best of our knowledge,this is the first inverse class-F Ga N internally-matched power amplifier,and the PAE is quite high at the X-band.An X-band inverse class-F power amplifier is realized by a 1-mm Al Ga N/Ga N high electron mobility transistor（HEMT）.The intrinsic and parasitic components inside the transistor,especially output capacitor Cds,influence the harmonic impedance heavily at the X-band,so compensation design is used for meeting the harmonic condition of inverse class-F on the current source plane.Experiment results show that,in the continuous-wave mode,the power amplifier achieves 61.7% power added efficiency（PAE）,which is 16.3% higher than the class-AB power amplifier realized by the same kind of HEMT.To the best of our knowledge,this is the first inverse class-F Ga N internally-matched power amplifier,and the PAE is quite high at the X-band.

关 键 词：GaN internally-matched power amplifier inverse class-F compensation design X-band power amplifier 

分 类 号：TN722.75[电子电信—电路与系统] TN958