An Energy-Efficient Ka/Q Dual-Band Power Amplifier MMIC in 0.1-mu m GaAs Process

作者：Lv, Guansheng; Chen, Wenhua^*; Chen, Xiaofan; Feng, Zhenghe

来源：IEEE Microwave and Wireless Components Letters, 2018, 28(6): 530-532.

DOI：10.1109/LMWC.2018.2832841

• Dual band
• high efficiency
• millimeter (mm)-wave
• monolithic microwave integrated circuit (MMIC)
• power amplifier (PA)

An energy-efficient Ka/Q dual-band power amplifier (PA) is proposed using 0.1-mu m GaAs pseudomorphic high-electron mobility transistor process in this letter. The PA consists of two stages, and its high efficiency is enhanced by employing a low-loss dual-band output matching network, and adopting different supply voltages for the driver stage and the output stage. Owing to the proposed matching circuits, the PA achieves a measured small signal gain of 19.3 and 15.5 dB, output power of 22.5 and 22.7 dBm, and peak power-added efficiency of 38% and 40% at 29.5 and 47 GHz, respectively. To our best knowledge, this is the state-of-the-art high efficiency dual-band PA operating at Ka-band and Q-band.

• 出版日期2018-6
• 单位清华大学