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Ku-Band 70-30-W-Class Internally Matched GaN Power Amplifiers With Low IMD3 Over
Ku波段70W和30W级内部匹配GaN功率放大器，具有低IMD3，适用于多载波卫星通信。
70W级PA: 48.6dBm峰值功率, >40dBm线性功率, <-26dBc IMD3(1-400MHz); 30W级PA: >36.3dBm线性功率, <-27dBc IMD3(达600MHz)
Ku波段GaN功率放大器内部匹配IMD3卫星通信
▸输出匹配电路包含三种不同类型的差频短路设计
▸两种短路设计嵌入PA封装内的锦标赛形输出匹配电路
▸第三种短路设计嵌入封装外的漏极偏置馈电
Abstract
This study describes the Ku-band 70- and
30-W-class internally matched gallium nitride (GaN) power
amplifiers (PAs) for multi-carrier satellite communications
(SatComs). The GaN PAs maintain low third-order intermod-
ulation distortion (IMD3) over a wide offset frequency range of
up to 400 MHz, whereas in the Ku-band, one PA can deliver a
high peak output power of approximately 70 W and the other
PA, a peak output power of higher than 30 W. To realize a
wide offset frequency operation, our propos