Elimination of rotation axes offset error in antenna radiation pattern measurements using spherical wave expansion

Päivi Koivisto

Research output: Contribution to journalArticleScientificpeer-review

1 Citation (Scopus)

Abstract

The error caused by the offset between θ- and φ-rotation axes is eliminated from a measured antenna radiation pattern. Proper offset is found by minimising the difference between the original data field and the field of the spherical wave expansion (SWE) calculated from the data. Errors of the original and the corrected fields are estimated as the difference from a field calculated by the IE3D simulator for the antenna. The method is verified by comparing the obtained offset with a value given by minimising the phase difference between the measured and the simulated electric fields.
Original languageEnglish
Pages (from-to)379-383
JournalAEÜ: International Journal of Electronics and Communications
Volume59
Issue number7
DOIs
Publication statusPublished - 2005
MoE publication typeA1 Journal article-refereed

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Directional patterns (antenna)
Simulators
Electric fields
Antennas

Keywords

  • spherical wave expansion
  • antenna radiation pattern measurements

Cite this

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title = "Elimination of rotation axes offset error in antenna radiation pattern measurements using spherical wave expansion",
abstract = "The error caused by the offset between θ- and φ-rotation axes is eliminated from a measured antenna radiation pattern. Proper offset is found by minimising the difference between the original data field and the field of the spherical wave expansion (SWE) calculated from the data. Errors of the original and the corrected fields are estimated as the difference from a field calculated by the IE3D simulator for the antenna. The method is verified by comparing the obtained offset with a value given by minimising the phase difference between the measured and the simulated electric fields.",
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Elimination of rotation axes offset error in antenna radiation pattern measurements using spherical wave expansion. / Koivisto, Päivi.

In: AEÜ: International Journal of Electronics and Communications, Vol. 59, No. 7, 2005, p. 379-383.

Research output: Contribution to journalArticleScientificpeer-review

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AU - Koivisto, Päivi

PY - 2005

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N2 - The error caused by the offset between θ- and φ-rotation axes is eliminated from a measured antenna radiation pattern. Proper offset is found by minimising the difference between the original data field and the field of the spherical wave expansion (SWE) calculated from the data. Errors of the original and the corrected fields are estimated as the difference from a field calculated by the IE3D simulator for the antenna. The method is verified by comparing the obtained offset with a value given by minimising the phase difference between the measured and the simulated electric fields.

AB - The error caused by the offset between θ- and φ-rotation axes is eliminated from a measured antenna radiation pattern. Proper offset is found by minimising the difference between the original data field and the field of the spherical wave expansion (SWE) calculated from the data. Errors of the original and the corrected fields are estimated as the difference from a field calculated by the IE3D simulator for the antenna. The method is verified by comparing the obtained offset with a value given by minimising the phase difference between the measured and the simulated electric fields.

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KW - antenna radiation pattern measurements

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JO - AEÜ: International Journal of Electronics and Communications

JF - AEÜ: International Journal of Electronics and Communications

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