A 26.3 dBm 2.5 to 6 GHz wideband class-D switched-capacitor power amplifier with 40% peak PAE

作者：Peng, Xing-Qiang; Yu, Wei-Han; Mak, Pui-In; Martins, Rui P.

来源：2014 IEEE International Conference on Electron Devices and Solid-State Circuits, EDSSC 2014, Chengdu, China, 2014-06-18 To 2014-06-20.

DOI：10.1109/EDSSC.2014.7061257

• Digital predistortion
• High-order
• Matching networks
• Output power
• RF power amplifiers
• Supply voltages
• Switched capacitor
• Test signal

This paper describes a wideband class-D RF power amplifier (PA) featuring switched-capacitor (SC) modulation, a high-order LC-matching network (MN) and a reliability-aware supply-voltage boosting technique. Simulated in 65-nm CMOS at an elevated 3.2-V supply, the rms voltage stressed on each device is managed to be well within the reliability limits. The broadband coverage is from 2.5 to 6 GHz with peak power-added efficiency (PAE) of 40% at 26.4 dBm output power. After digital predistortion, the EVM is controlled <6.8% under the 16-QAM modulated test signals.

• 单位
  澳门大学