一种L波段高效率阵列应用GaN功率放大器

An L-Band High Efficiency GaN Power Amplifiers for Phased Array

设计了一种L波段高效率阵列应用Ga N功率放大器,该模块包含基于谐波控制方法设计的高效率末级功率放大器和一个基于小信号S参数方法设计的高增益驱动功率放大器。高效率末级功率放大器最高效率达到82%。整个高效率功率放大器模块幅度一致性小于±0.35d B,相位一致性优于±3.6°,输出功率大于18W,效率大于52.8%。

An L-band high efficiency GaN power amplifier is presented for phased array. Two parts are included in this module： one is a high efficiency last stage power amplifier （LPA） u- sing harmonic control methodology, and the other one is a high gain driver power amplifier （DPA） using small S parameter method. The maximum efficiency of the LPA is 82%. For the L-band high efficiency power amplifier module, amplitude consistency is less than ＋0.35dB, phase consistency is better than±3.6°, the minimum output power is 18W and the efficiency more than 52.8% is achieved.