Linearization Technologies for High Efficiency Power Amplifier of Cellular Base Stations

Yasunori SUZUKI; Shoichi NARAHASHI

doi:10.1587/transele.2021MMI0009

Open Access
Linearization Technologies for High Efficiency Power Amplifier of Cellular Base Stations

Yasunori SUZUKI, Shoichi NARAHASHI

Full Text Views

196

Share
Cite this

Free PDF (2.4MB)

Summary :

This paper presents linearization technologies for high efficiency power amplifiers of cellular base stations. These technologies are important to actualizing highly efficient power amplifiers that reduce power consumption of the base station equipment and to achieving a sufficient non-linear distortion compensation level. It is well known that it is very difficult for a power amplifier using linearization technologies to achieve simultaneously high efficiency and a sufficient non-linear distortion compensation level. This paper presents two approaches toward addressing this technical issue. The first approach is a feed-forward power amplifier using the Doherty amplifier as the main amplifier. The second approach is a digital predistortion linearizer that compensates for frequency dependent intermodulation distortion components. Experimental results validate these approaches as effective for providing power amplification for base stations.

Publication: IEICE TRANSACTIONS on Electronics Vol.E104-C No.10 pp.534-542

Publication Date: 2021/10/01

Publicized: 2021/03/24

Online ISSN: 1745-1353

DOI: 10.1587/transele.2021MMI0009

Type of Manuscript: Special Section INVITED PAPER (Special Section on Microwave and Millimeter-Wave Technologies)

Category

Authors

Yasunori SUZUKI
NTT DOCOMO, INC.
Shoichi NARAHASHI
Setsunan University

Keyword

feed-forward, predistortion, power amplifier, cellular base station

Cite this

Copy

Yasunori SUZUKI, Shoichi NARAHASHI, "Linearization Technologies for High Efficiency Power Amplifier of Cellular Base Stations" in IEICE TRANSACTIONS on Electronics, vol. E104-C, no. 10, pp. 534-542, October 2021, doi: 10.1587/transele.2021MMI0009.
Abstract: This paper presents linearization technologies for high efficiency power amplifiers of cellular base stations. These technologies are important to actualizing highly efficient power amplifiers that reduce power consumption of the base station equipment and to achieving a sufficient non-linear distortion compensation level. It is well known that it is very difficult for a power amplifier using linearization technologies to achieve simultaneously high efficiency and a sufficient non-linear distortion compensation level. This paper presents two approaches toward addressing this technical issue. The first approach is a feed-forward power amplifier using the Doherty amplifier as the main amplifier. The second approach is a digital predistortion linearizer that compensates for frequency dependent intermodulation distortion components. Experimental results validate these approaches as effective for providing power amplification for base stations.
URL: https://globals.ieice.org/en_transactions/electronics/10.1587/transele.2021MMI0009/_p

Copy

@ARTICLE{e104-c_10_534,
author={Yasunori SUZUKI, Shoichi NARAHASHI, },
journal={IEICE TRANSACTIONS on Electronics},
title={Linearization Technologies for High Efficiency Power Amplifier of Cellular Base Stations},
year={2021},
volume={E104-C},
number={10},
pages={534-542},
abstract={This paper presents linearization technologies for high efficiency power amplifiers of cellular base stations. These technologies are important to actualizing highly efficient power amplifiers that reduce power consumption of the base station equipment and to achieving a sufficient non-linear distortion compensation level. It is well known that it is very difficult for a power amplifier using linearization technologies to achieve simultaneously high efficiency and a sufficient non-linear distortion compensation level. This paper presents two approaches toward addressing this technical issue. The first approach is a feed-forward power amplifier using the Doherty amplifier as the main amplifier. The second approach is a digital predistortion linearizer that compensates for frequency dependent intermodulation distortion components. Experimental results validate these approaches as effective for providing power amplification for base stations.},
keywords={},
doi={10.1587/transele.2021MMI0009},
ISSN={1745-1353},
month={October},}

Copy

TY - JOUR
TI - Linearization Technologies for High Efficiency Power Amplifier of Cellular Base Stations
T2 - IEICE TRANSACTIONS on Electronics
SP - 534
EP - 542
AU - Yasunori SUZUKI
AU - Shoichi NARAHASHI
PY - 2021
DO - 10.1587/transele.2021MMI0009
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E104-C
IS - 10
JA - IEICE TRANSACTIONS on Electronics
Y1 - October 2021
AB - This paper presents linearization technologies for high efficiency power amplifiers of cellular base stations. These technologies are important to actualizing highly efficient power amplifiers that reduce power consumption of the base station equipment and to achieving a sufficient non-linear distortion compensation level. It is well known that it is very difficult for a power amplifier using linearization technologies to achieve simultaneously high efficiency and a sufficient non-linear distortion compensation level. This paper presents two approaches toward addressing this technical issue. The first approach is a feed-forward power amplifier using the Doherty amplifier as the main amplifier. The second approach is a digital predistortion linearizer that compensates for frequency dependent intermodulation distortion components. Experimental results validate these approaches as effective for providing power amplification for base stations.
ER -