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%.

digital predistortion

power amplifiers

linearization

dual-input Doherty

digital Doherty

Författare

Jessica Chani Cahuana

Gigahertzcentrum

Chalmers, Mikroteknologi och nanovetenskap (MC2), Mikrovågselektronik

Per Landin

Chalmers, Mikroteknologi och nanovetenskap (MC2), Mikrovågselektronik

Gigahertzcentrum

David Gustafsson

Gigahertzcentrum

Chalmers, Mikroteknologi och nanovetenskap (MC2), Mikrovågselektronik

Christian Fager

Chalmers, Mikroteknologi och nanovetenskap (MC2), Mikrovågselektronik

Gigahertzcentrum

Thomas Eriksson

Chalmers, Mikroteknologi och nanovetenskap (MC2), Mikrovågselektronik

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

Senast uppdaterat

2019-07-26