Enhancement of Power-Added Efficiency in GaAs Power Amplifiers by Dynamic Gate Biasing
Paper in proceeding, 2023
We demonstrate the efficiency and linearity improvement of an E-band GaAs power amplifier (PA) through dynamic gate modulation. By optimizing the coefficients of the linear power tracking gate modulation function, we enhance the output power at the spectrum emission mask limit from 24.1dBm to 25.8dBm. This leads to a significant improvement in average power-added efficiency $(\overline {PAE} )$ from 4.9% to 7.4%, surpassing third-order digital pre-distortion (DPD). Our findings highlight the potential of dynamic gate biasing for enhancing efficiency and linearity in mm-wave and sub-THz power amplifiers.
power amplifiers
power tracking
dynamic gate biasing
Author
Göksu Kaval
Chalmers, Microtechnology and Nanoscience (MC2), Microwave Electronics
Gotmic AB
Gregor Lasser
Chalmers, Microtechnology and Nanoscience (MC2), Microwave Electronics
Marcus Gavell
Gotmic AB
Christian Fager
Chalmers, Microtechnology and Nanoscience (MC2), Microwave Electronics
2023 International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits, INMMiC 2023 - Proceedings
9798350322422 (ISBN)
2023 International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits, INMMiC 2023
Aveiro, Portugal,
Aveiro, Portugal,
Eureka CELTIC: Energy-Efficient Radio Systems at 100 GHz and beyond: Antennas, Transceivers and Waveforms
VINNOVA (2020-02889), 2021-01-01 -- 2024-02-07.
Subject Categories
Signal Processing
Other Electrical Engineering, Electronic Engineering, Information Engineering
Condensed Matter Physics
DOI
10.1109/INMMIC57329.2023.10321795