Design considerations for low antenna correlation and mutual coupling reduction in multi antenna terminals

Jesper Thaysen; Kaj Bjarne Jakobsen

doi:10.1002/ett.1111

Design considerations for low antenna correlation and mutual coupling reduction in multi antenna terminals

Jesper Thaysen, Kaj Bjarne Jakobsen

Nokia Danmark A/S

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

The influence of mutual coupling on the envelope correlation between two identical planar inverted F-antennas (PIFA) are investigated. The capacity of a multiple-input multiple-output (MIMO) antenna system strongly depends on the correlation between the antennas. By placing two antennas in a fixed area, it is found that the envelope correlation could be halved simply by proper mutual orientation. The set-ups that maximise the distances between the open ends of the PIFAs yield the lowest mutual coupling as well as the lowest envelope correlations. It is found that the envelope correlation is 0.8 when the PIFAs are oriented in parallel. The envelope correlation can be decreased to 0.4 by rotating one of the PIFAs by 180 degrees.

Original language	English
Journal	European Transactions on Telecommunications
Volume	18
Issue number	3
Pages (from-to)	319-326
ISSN	1124-318X
DOIs	https://doi.org/10.1002/ett.1111
Publication status	Published - 2007

Keywords

Envelope correlation

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title = "Design considerations for low antenna correlation and mutual coupling reduction in multi antenna terminals",

abstract = "The influence of mutual coupling on the envelope correlation between two identical planar inverted F-antennas (PIFA) are investigated. The capacity of a multiple-input multiple-output (MIMO) antenna system strongly depends on the correlation between the antennas. By placing two antennas in a fixed area, it is found that the envelope correlation could be halved simply by proper mutual orientation. The set-ups that maximise the distances between the open ends of the PIFAs yield the lowest mutual coupling as well as the lowest envelope correlations. It is found that the envelope correlation is 0.8 when the PIFAs are oriented in parallel. The envelope correlation can be decreased to 0.4 by rotating one of the PIFAs by 180 degrees.",

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AU - Jakobsen, Kaj Bjarne

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N2 - The influence of mutual coupling on the envelope correlation between two identical planar inverted F-antennas (PIFA) are investigated. The capacity of a multiple-input multiple-output (MIMO) antenna system strongly depends on the correlation between the antennas. By placing two antennas in a fixed area, it is found that the envelope correlation could be halved simply by proper mutual orientation. The set-ups that maximise the distances between the open ends of the PIFAs yield the lowest mutual coupling as well as the lowest envelope correlations. It is found that the envelope correlation is 0.8 when the PIFAs are oriented in parallel. The envelope correlation can be decreased to 0.4 by rotating one of the PIFAs by 180 degrees.

AB - The influence of mutual coupling on the envelope correlation between two identical planar inverted F-antennas (PIFA) are investigated. The capacity of a multiple-input multiple-output (MIMO) antenna system strongly depends on the correlation between the antennas. By placing two antennas in a fixed area, it is found that the envelope correlation could be halved simply by proper mutual orientation. The set-ups that maximise the distances between the open ends of the PIFAs yield the lowest mutual coupling as well as the lowest envelope correlations. It is found that the envelope correlation is 0.8 when the PIFAs are oriented in parallel. The envelope correlation can be decreased to 0.4 by rotating one of the PIFAs by 180 degrees.

KW - Envelope correlation

KW - mutual coupling

KW - MIMO

KW - PIFA

U2 - 10.1002/ett.1111

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M3 - Journal article

SN - 1124-318X

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EP - 326

JO - European Transactions on Telecommunications

JF - European Transactions on Telecommunications

IS - 3

ER -

Design considerations for low antenna correlation and mutual coupling reduction in multi antenna terminals

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Keywords

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