Linearization of Active Transmitter Arrays in Presence of Antenna Crosstalk for 5G Systems

Research output: Contribution to conference without publisher/journalPaper without publisher/journalResearchpeer-review

Abstract

By increasing the number of antennas and power amplifiers connected to each in 5G system, the linearization methods like digital pre-distortion (DPD) of each power amplifier is inefficient due to antenna imperfections such as crosstalk. As a result of limited area the distance between antennas in array can vary which leads to unwanted coupling between antennas. A solution to this problem could be treating the amplifiers and antennas as one system and linearizing the main beam signal at the receiver rather than on each single power amplifier. In the work described in this paper, the whole system including amplifiers, antennas and the receiver is treated as a 2-ports system and the impacts of the above mentioned constraints are investigated.
Original languageEnglish
Publication date20 Sep 2019
Number of pages5
Publication statusPublished - 20 Sep 2019
EventNorCAS - Helsinki, Finland
Duration: 28 Oct 201930 Oct 2019

Conference

ConferenceNorCAS
CountryFinland
CityHelsinki
Period28/10/201930/10/2019

Fingerprint

Crosstalk
Linearization
Transmitters
Antennas
Power amplifiers
Defects

Cite this

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title = "Linearization of Active Transmitter Arrays in Presence of Antenna Crosstalk for 5G Systems",
abstract = "By increasing the number of antennas and power amplifiers connected to each in 5G system, the linearization methods like digital pre-distortion (DPD) of each power amplifier is inefficient due to antenna imperfections such as crosstalk. As a result of limited area the distance between antennas in array can vary which leads to unwanted coupling between antennas. A solution to this problem could be treating the amplifiers and antennas as one system and linearizing the main beam signal at the receiver rather than on each single power amplifier. In the work described in this paper, the whole system including amplifiers, antennas and the receiver is treated as a 2-ports system and the impacts of the above mentioned constraints are investigated.",
author = "Feridoon Jalili and Nielsen, {Martin Hedegaard} and Ming Shen and Jensen, {Ole Kiel} and Mikkelsen, {Jan H.} and Pedersen, {Gert Fr{\o}lund}",
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Linearization of Active Transmitter Arrays in Presence of Antenna Crosstalk for 5G Systems. / Jalili, Feridoon; Nielsen, Martin Hedegaard; Shen, Ming; Jensen, Ole Kiel; Mikkelsen, Jan H.; Pedersen, Gert Frølund.

2019. 1-5 Paper presented at NorCAS, Helsinki, Finland.

Research output: Contribution to conference without publisher/journalPaper without publisher/journalResearchpeer-review

TY - CONF

T1 - Linearization of Active Transmitter Arrays in Presence of Antenna Crosstalk for 5G Systems

AU - Jalili, Feridoon

AU - Nielsen, Martin Hedegaard

AU - Shen, Ming

AU - Jensen, Ole Kiel

AU - Mikkelsen, Jan H.

AU - Pedersen, Gert Frølund

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Y1 - 2019/9/20

N2 - By increasing the number of antennas and power amplifiers connected to each in 5G system, the linearization methods like digital pre-distortion (DPD) of each power amplifier is inefficient due to antenna imperfections such as crosstalk. As a result of limited area the distance between antennas in array can vary which leads to unwanted coupling between antennas. A solution to this problem could be treating the amplifiers and antennas as one system and linearizing the main beam signal at the receiver rather than on each single power amplifier. In the work described in this paper, the whole system including amplifiers, antennas and the receiver is treated as a 2-ports system and the impacts of the above mentioned constraints are investigated.

AB - By increasing the number of antennas and power amplifiers connected to each in 5G system, the linearization methods like digital pre-distortion (DPD) of each power amplifier is inefficient due to antenna imperfections such as crosstalk. As a result of limited area the distance between antennas in array can vary which leads to unwanted coupling between antennas. A solution to this problem could be treating the amplifiers and antennas as one system and linearizing the main beam signal at the receiver rather than on each single power amplifier. In the work described in this paper, the whole system including amplifiers, antennas and the receiver is treated as a 2-ports system and the impacts of the above mentioned constraints are investigated.

M3 - Paper without publisher/journal

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