Linearization of dual-input Doherty power amplifiers
Paper i proceeding, 2014

This paper studies the linearity of dual-input Doherty power amplifiers. We propose a linearization scheme that uses a combination of an efficiency-optimized static splitter and a vector-switched digital predistorter. The performance of the proposed linearization scheme is evaluated on a dual-input Doherty power amplifier operating at 2.0 GHz with 42 dBm peak output power. Experimental results show that the proposed linearization scheme achieves a normalized mean square error of-43.7 dB and an adjacent channel power ratio of-55.8 dBc with a power added efficiency of 42.4%.

linearization

power amplifiers

digital predistortion

digital Doherty

dual-input Doherty

Författare

Jessica Chani Cahuana

Gigahertzcentrum

Per Landin

Gigahertzcentrum

David Gustafsson

Gigahertzcentrum

Christian Fager

Gigahertzcentrum

Thomas Eriksson

Gigahertzcentrum

International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits, INMMiC 2014

Art. no. 6815085- 6815085

Styrkeområden

Informations- och kommunikationsteknik

Ämneskategorier

Elektroteknik och elektronik

DOI

10.1109/INMMIC.2014.6815085

Mer information

Skapat

2017-10-07