Digital Predistortion for Dual-Input Doherty Amplifiers
Paper i proceeding, 2012

This paper presents a digital predistortion technique for dual-input Doherty power amplifiers. The proposed technique utilizes both RF inputs of the main and peak amplifiers in the digital predistorter. The effectiveness of the resulting dual-input predistorter is evaluated on a twoway Doherty amplifier operating at 2.14 GHz with 53.5 dBm peak output power. The experimental results demonstrate that the dual-input approach outperforms the conventional single-input predistortion technique by ∼3 dB in terms of adjacent channel leakage ratio.

Författare

Haiying Cao

Chalmers, Mikroteknologi och nanovetenskap (MC2), Mikrovågselektronik

Gigahertzcentrum

Jawad Qureshi

Delft Institute of Microelectronics and Submicrontechnology - DIMES

Thomas Eriksson

Chalmers, Signaler och system, Kommunikations- och antennsystem, Kommunikationssystem

Gigahertzcentrum

Christian Fager

Gigahertzcentrum

Chalmers, Mikroteknologi och nanovetenskap (MC2), Mikrovågselektronik

Leo de Vreede

Delft Institute of Microelectronics and Submicrontechnology - DIMES

RWW 2012 - Proceedings. 2012 IEEE Topical Conference on Power Amplifiers for Wireless and Radio Applications, PAWR 2012. Santa Clara, CA, 15-18 January 2012

45-48 6174934

Styrkeområden

Informations- och kommunikationsteknik

Ämneskategorier

Elektroteknik och elektronik

DOI

10.1109/PAWR.2012.6174934

ISBN

978-145771154-1

Mer information

Skapat

2017-10-07