Enhancement of Power-Added Efficiency in GaAs Power Amplifiers by Dynamic Gate Biasing
Paper i 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

Författare

Göksu Kaval

Chalmers, Mikroteknologi och nanovetenskap, Mikrovågselektronik

Gotmic AB

Gregor Lasser

Chalmers, Mikroteknologi och nanovetenskap, Mikrovågselektronik

Marcus Gavell

Gotmic AB

Christian Fager

Chalmers, Mikroteknologi och nanovetenskap, Mikrovågselektronik

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,

Eureka CELTIC: Energy-Efficient Radio Systems at 100 GHz and beyond: Antennas, Transceivers and Waveforms

VINNOVA (2020-02889), 2021-01-01 -- 2024-02-07.

Ämneskategorier

Signalbehandling

Annan elektroteknik och elektronik

Den kondenserade materiens fysik

DOI

10.1109/INMMIC57329.2023.10321795

Mer information

Senast uppdaterat

2023-12-27