A Linearity-enhanced 28-GHz Class-F−1 SiGe Power Amplifier
- Resource Type
- Conference
- Authors
- Wang, Zuojun; Hou, Debin; Zhou, Peigen; Li, Zekun; Yu, Jiayang; Chen, Jixin; Hong, Wei
- Source
- 2022 IEEE MTT-S International Wireless Symposium (IWS) Wireless Symposium (IWS), 2022 IEEE MTT-S International. 1:1-3 Aug, 2022
- Subject
- Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Computing and Processing
Engineered Materials, Dielectrics and Plasmas
Fields, Waves and Electromagnetics
Signal Processing and Analysis
Wireless communication
5G mobile communication
Network topology
Linearity
Power amplifiers
Harmonic analysis
Transformers
28-GHz
64-QAM
Class-F-1
inductive degeneration
power amplifier (PA)
silicon germanium (SiGe)
- Language
This paper presents a Class-F −1 power amplifier (PA) targeting 28-GHz 5G communication. A common emitter (CE) topology with a degeneration inductor for linearity enhancement is analyzed. The optimum harmonic terminations for Class-F −1 operation are provided by a transformer-based harmonic tuned network. Fabricated in $0.13-\mu \text{mSiGe}$ process, the PA achieves a measured output 1-dB compression point $(\text{OP}_{1\text{dB}})$ of 16.5 dBm and a maximum power-added efficiency (PAE) of 37.2% at 28 GHz with a 1.6-V supply. The high linearity of the PA is demonstrated by a 64-QAM signal measurement with 2.4 Gb/s data rate at 28 GHz. The proposed PA exhibits a 12.5-dBm average output power (P avg ) and 17.8% PAE with a corresponding EVM of -26 dB. The proposed PA fulfills the high linearity and high efficiency requirement of 5G applications.