RF PA Predistortion using Non-Linear RF-DACs
Paper in proceeding, 2022

Analog and/or digital predistortion may be used to linearize power amplifiers (PAs) at the cost of additional hardware. We present a novel scheme which uses segmented non-linear RF-DACs to linearize PAs at no additional hardware cost. An expanding segmented scaling chosen at design time may be adjusted using DAC bias, allowing linearization to be adapted. Simulations demonstrate the robustness and flexibility of the approach, achieving excellent overall linearity over a large range of DAC and PA bias conditions.

Power amplifier (PA)

Non-linear scaling

Predistortion

RF-DAC

Linearization

Author

Victor Åberg

Embedded Electronics Systems and Computer Graphics

Han Zhou

Chalmers, Microtechnology and Nanoscience (MC2), Microwave Electronics

Christian Fager

Chalmers, Microtechnology and Nanoscience (MC2), Microwave Electronics

Lars Svensson

Embedded Electronics Systems and Computer Graphics

2022 IEEE Nordic Circuits and Systems Conference, NORCAS 2022 - Proceedings


9798350345506 (ISBN)

NorCAS 2022 (IEEE Nordic Circuits and Systems Conference)
Oslo, Norway,

Areas of Advance

Information and Communication Technology

Infrastructure

Kollberg Laboratory

Subject Categories

Telecommunications

Communication Systems

Embedded Systems

Other Electrical Engineering, Electronic Engineering, Information Engineering

DOI

10.1109/NorCAS57515.2022.9934679

More information

Latest update

5/1/2024 1