RF PA Predistortion using Non-Linear RF-DACs
Paper i 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.

RF-DAC

Non-linear scaling

Linearization

Predistortion

Power amplifier (PA)

Författare

Victor Åberg

Embedded Electronics Systems and Computer Graphics

Han Zhou

Chalmers, Mikroteknologi och nanovetenskap, Mikrovågselektronik

Christian Fager

Chalmers, Mikroteknologi och nanovetenskap, Mikrovågselektronik

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,

Styrkeområden

Informations- och kommunikationsteknik

Infrastruktur

Kollberglaboratoriet

Ämneskategorier

Telekommunikation

Kommunikationssystem

Inbäddad systemteknik

Annan elektroteknik och elektronik

DOI

10.1109/NorCAS57515.2022.9934679

Mer information

Senast uppdaterat

2023-10-27