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
GigaHertz Centrum
Jawad Qureshi
Delft Institute of Microelectronics and Submicrontechnology - DIMES
Thomas Eriksson
Chalmers, Signaler och system, Kommunikationssystem, informationsteori och antenner
GigaHertz Centrum
Christian Fager
GigaHertz Centrum
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
978-145771154-1 (ISBN)
Styrkeområden
Informations- och kommunikationsteknik
Ämneskategorier (SSIF 2011)
Elektroteknik och elektronik
DOI
10.1109/PAWR.2012.6174934
ISBN
978-145771154-1