The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
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126
Pour améliorer le système de communication mobile de cinquième génération, un amplificateur de puissance hautement efficace doit être conçu pour la station de base. Un amplificateur de déphasage devrait être une solution pour atteindre un rendement élevé. Nous avons conçu un combineur, l'un des composants clés de l'amplificateur de déphasage, utilisant un combineur Chireix série et fabriqué un amplificateur avec un GaN HEMT, atteignant un rendement élevé de 70 % ou plus jusqu'à 9 dB de puissance de réduction dans une bande de 800 MHz. Nous avons également fabriqué un amplificateur de déphasage dans la bande 2 GHz avec le même design. Nous avons appliqué une prédistorsion numérique (DPD) pour contrôler l'équilibre des unités d'amplification dans cet amplificateur et avons atteint une efficacité moyenne de 65 % sous une bande passante de modulation de 20 MHz.
Shigekazu KIMURA
Fujitsu
Toshio KAWASAKI
Fujitsu
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Shigekazu KIMURA, Toshio KAWASAKI, "How to Design an Outphasing Power Amplifier with Digital Predistortion" in IEICE TRANSACTIONS on Electronics,
vol. E104-C, no. 10, pp. 472-479, October 2021, doi: 10.1587/transele.2021MMI0006.
Abstract: For improving the fifth-generation mobile communication system, a highly efficient power amplifier must be designed for the base station. An outphasing amplifier is expected to be a solution for achieving high efficiency. We designed a combiner, one of the key components of the outphasing amplifier, using a serial Chireix combiner and fabricated an amplifier with a GaN HEMT, achieving 70% or more high efficiency up to 9 dB back-off power in an 800 MHz band. We also fabricated a 2 GHz-band outphasing amplifier with the same design. We applied digital predistortion (DPD) to control the balance of amplifying units in this amplifier and achieved an average efficiency of 65% under a 20 MHz modulation bandwidth.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/transele.2021MMI0006/_p
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@ARTICLE{e104-c_10_472,
author={Shigekazu KIMURA, Toshio KAWASAKI, },
journal={IEICE TRANSACTIONS on Electronics},
title={How to Design an Outphasing Power Amplifier with Digital Predistortion},
year={2021},
volume={E104-C},
number={10},
pages={472-479},
abstract={For improving the fifth-generation mobile communication system, a highly efficient power amplifier must be designed for the base station. An outphasing amplifier is expected to be a solution for achieving high efficiency. We designed a combiner, one of the key components of the outphasing amplifier, using a serial Chireix combiner and fabricated an amplifier with a GaN HEMT, achieving 70% or more high efficiency up to 9 dB back-off power in an 800 MHz band. We also fabricated a 2 GHz-band outphasing amplifier with the same design. We applied digital predistortion (DPD) to control the balance of amplifying units in this amplifier and achieved an average efficiency of 65% under a 20 MHz modulation bandwidth.},
keywords={},
doi={10.1587/transele.2021MMI0006},
ISSN={1745-1353},
month={October},}
Copier
TY - JOUR
TI - How to Design an Outphasing Power Amplifier with Digital Predistortion
T2 - IEICE TRANSACTIONS on Electronics
SP - 472
EP - 479
AU - Shigekazu KIMURA
AU - Toshio KAWASAKI
PY - 2021
DO - 10.1587/transele.2021MMI0006
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E104-C
IS - 10
JA - IEICE TRANSACTIONS on Electronics
Y1 - October 2021
AB - For improving the fifth-generation mobile communication system, a highly efficient power amplifier must be designed for the base station. An outphasing amplifier is expected to be a solution for achieving high efficiency. We designed a combiner, one of the key components of the outphasing amplifier, using a serial Chireix combiner and fabricated an amplifier with a GaN HEMT, achieving 70% or more high efficiency up to 9 dB back-off power in an 800 MHz band. We also fabricated a 2 GHz-band outphasing amplifier with the same design. We applied digital predistortion (DPD) to control the balance of amplifying units in this amplifier and achieved an average efficiency of 65% under a 20 MHz modulation bandwidth.
ER -