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

Publikation: Konferencebidrag uden forlag/tidsskriftPaper uden forlag/tidsskriftForskningpeer review

Resumé

—By the increased 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. Furthermore due to limited area the distance between antennas in array can vary, which leads to unwanted coupling between antennas. A solution to this problem can be treating the amplifiers and antennas as one system and linearizing the main beam signal at receiver rather than on each single power amplifier. In the work described in this paper the whole system including amplifiers, antennas and receiver is treated as a 2-ports system and the impacts of above mentioned constraints are investigated.
OriginalsprogEngelsk
Publikationsdato20 sep. 2019
Antal sider5
StatusUdgivet - 20 sep. 2019
BegivenhedNorCAS - Helsinki, Finland
Varighed: 28 okt. 201930 okt. 2019

Konference

KonferenceNorCAS
LandFinland
ByHelsinki
Periode28/10/201930/10/2019

Fingerprint

Crosstalk
Linearization
Transmitters
Antennas
Power amplifiers
Defects

Citer dette

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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 Afhandling præsenteret på NorCAS, Helsinki, Finland.

Publikation: Konferencebidrag uden forlag/tidsskriftPaper uden forlag/tidsskriftForskningpeer 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

PY - 2019/9/20

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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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