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, Mikrovågselektronik
Gigahertzcentrum
Jawad Qureshi
Delft Institute of Microelectronics and Submicrontechnology - DIMES
Thomas Eriksson
Chalmers, Signaler och system, Kommunikation, Antenner och Optiska Nätverk
Gigahertzcentrum
Christian Fager
Gigahertzcentrum
Chalmers, Mikroteknologi och nanovetenskap, 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
Elektroteknik och elektronik
DOI
10.1109/PAWR.2012.6174934
ISBN
978-145771154-1