Linearizing Active Antenna Arrays: Digital Predistortion Method and Measurements

Alberto Brihuega Garcia; Mahmoud Abdelaziz; Matias Turunen; Thomas Eriksson; Lauri Anttila; Mikko Valkama

doi:10.1109/IMC-5G47857.2019.9160379

Linearizing Active Antenna Arrays: Digital Predistortion Method and Measurements

Alberto Brihuega Garcia, Mahmoud Abdelaziz, Matias Turunen, Thomas Eriksson, Lauri Anttila, Mikko Valkama

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Tutkimustuotos: Konferenssiartikkeli › Scientific › vertaisarvioitu

1 Sitaatiot (Scopus)

9 Lataukset (Pure)

Abstrakti

In this paper, we provide a novel framework for efficient digital predistortion (DPD) based linearization of active antenna arrays with multiple and mutually different nonlinear power amplifiers. The proposed method builds on the use of a combined feedback signal essentially characterizing the observable nonlinear distortion at the receiving end. The proposed method is validated with extensive over-the-air RF measurements on a 64-element active antenna array transmitter operating at 28 GHz carrier frequency and transmitting a 200 MHz wide 5G New Radio (NR) waveform. The obtained results demonstrate the excellent linearization capabilities of the proposed solution, which allows for a very efficient implementation in practical systems.

Alkuperäiskieli	Englanti
Otsikko	Proceedings 2019 IEEE MTT-S International Microwave Conference on Hardware and Systems for 5G and Beyond
Kustantaja	IEEE
Sivumäärä	3
ISBN (elektroninen)	978-1-7281-3143-6
DOI - pysyväislinkit	https://doi.org/10.1109/IMC-5G47857.2019.9160379
Tila	Julkaistu - 2019
OKM-julkaisutyyppi	A4 Artikkeli konferenssijulkaisussa
Tapahtuma	IEEE MTT-S International Microwave Conference on Hardware and Systems for 5G and Beyond - Kesto: 15 elok. 2019 → 16 elok. 2019

Conference

Conference	IEEE MTT-S International Microwave Conference on Hardware and Systems for 5G and Beyond
Ajanjakso	15/08/19 → 16/08/19

Julkaisufoorumi-taso

Jufo-taso 1

Pääsy asiakirjaan

10.1109/IMC-5G47857.2019.9160379

Linearizing Active Antenna Arrays 2019
This publication is copyrighted. You may download, display and print it for Your own personal use. Commercial use is prohibited.
Accepted author manuscript, 2,52 MB

http://urn.fi/URN:NBN:fi:tuni-202009307190

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@inproceedings{a0302bc46769430389fab22da0ddfe38,

title = "Linearizing Active Antenna Arrays: Digital Predistortion Method and Measurements",

abstract = "In this paper, we provide a novel framework for efficient digital predistortion (DPD) based linearization of active antenna arrays with multiple and mutually different nonlinear power amplifiers. The proposed method builds on the use of a combined feedback signal essentially characterizing the observable nonlinear distortion at the receiving end. The proposed method is validated with extensive over-the-air RF measurements on a 64-element active antenna array transmitter operating at 28 GHz carrier frequency and transmitting a 200 MHz wide 5G New Radio (NR) waveform. The obtained results demonstrate the excellent linearization capabilities of the proposed solution, which allows for a very efficient implementation in practical systems.",

author = "{Brihuega Garcia}, Alberto and Mahmoud Abdelaziz and Matias Turunen and Thomas Eriksson and Lauri Anttila and Mikko Valkama",

year = "2019",

doi = "10.1109/IMC-5G47857.2019.9160379",

language = "English",

booktitle = "Proceedings 2019 IEEE MTT-S International Microwave Conference on Hardware and Systems for 5G and Beyond",

publisher = "IEEE",

note = "IEEE MTT-S International Microwave Conference on Hardware and Systems for 5G and Beyond ; Conference date: 15-08-2019 Through 16-08-2019",

}

Brihuega Garcia, A, Abdelaziz, M, Turunen, M, Eriksson, T, Anttila, L & Valkama, M 2019, Linearizing Active Antenna Arrays: Digital Predistortion Method and Measurements. julkaisussa Proceedings 2019 IEEE MTT-S International Microwave Conference on Hardware and Systems for 5G and Beyond. IEEE, IEEE MTT-S International Microwave Conference on Hardware and Systems for 5G and Beyond, 15/08/19. https://doi.org/10.1109/IMC-5G47857.2019.9160379

TY - GEN

T1 - Linearizing Active Antenna Arrays: Digital Predistortion Method and Measurements

AU - Brihuega Garcia, Alberto

AU - Abdelaziz, Mahmoud

AU - Turunen, Matias

AU - Eriksson, Thomas

AU - Anttila, Lauri

AU - Valkama, Mikko

PY - 2019

Y1 - 2019

N2 - In this paper, we provide a novel framework for efficient digital predistortion (DPD) based linearization of active antenna arrays with multiple and mutually different nonlinear power amplifiers. The proposed method builds on the use of a combined feedback signal essentially characterizing the observable nonlinear distortion at the receiving end. The proposed method is validated with extensive over-the-air RF measurements on a 64-element active antenna array transmitter operating at 28 GHz carrier frequency and transmitting a 200 MHz wide 5G New Radio (NR) waveform. The obtained results demonstrate the excellent linearization capabilities of the proposed solution, which allows for a very efficient implementation in practical systems.

AB - In this paper, we provide a novel framework for efficient digital predistortion (DPD) based linearization of active antenna arrays with multiple and mutually different nonlinear power amplifiers. The proposed method builds on the use of a combined feedback signal essentially characterizing the observable nonlinear distortion at the receiving end. The proposed method is validated with extensive over-the-air RF measurements on a 64-element active antenna array transmitter operating at 28 GHz carrier frequency and transmitting a 200 MHz wide 5G New Radio (NR) waveform. The obtained results demonstrate the excellent linearization capabilities of the proposed solution, which allows for a very efficient implementation in practical systems.

U2 - 10.1109/IMC-5G47857.2019.9160379

DO - 10.1109/IMC-5G47857.2019.9160379

M3 - Conference contribution

BT - Proceedings 2019 IEEE MTT-S International Microwave Conference on Hardware and Systems for 5G and Beyond

PB - IEEE

T2 - IEEE MTT-S International Microwave Conference on Hardware and Systems for 5G and Beyond

Y2 - 15 August 2019 through 16 August 2019

ER -

Linearizing Active Antenna Arrays: Digital Predistortion Method and Measurements

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Conference

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