Antenna effective aperture measurement with backscattering modulation

Research output: Contribution to journalArticleScientificpeer-review

22 Citations (Scopus)

Abstract

A scattering measurement method for antenna characterization is described. The antenna backscattering is modulated by an oscillator circuit. The modulation begins, when a known RF power is transferred to the oscillator circuit from the antenna. This enables the measurement of the effective aperture of the antenna, from which the antenna bandwidth and radiation pattern are obtained. A theory for antenna aperture measurement is developed using a simple circuit model for the antenna-oscillator system. A dipole and a PIFA with a reactive input impedance at the application frequency were measured. The antenna aperture was measured to an accuracy of 9%, and the measurements complied with simulated and measured references. The method provides simple and accurate bandwidth and radiation pattern measurements with the reactive load the antenna is designed to work with.
Original languageEnglish
Pages (from-to)2836-2843
JournalIEEE Transactions on Antennas and Propagation
Volume55
Issue number10
DOIs
Publication statusPublished - 2007
MoE publication typeA1 Journal article-refereed

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Backscattering
Modulation
Antennas
Directional patterns (antenna)
Networks (circuits)
Bandwidth
Scattering

Cite this

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title = "Antenna effective aperture measurement with backscattering modulation",
abstract = "A scattering measurement method for antenna characterization is described. The antenna backscattering is modulated by an oscillator circuit. The modulation begins, when a known RF power is transferred to the oscillator circuit from the antenna. This enables the measurement of the effective aperture of the antenna, from which the antenna bandwidth and radiation pattern are obtained. A theory for antenna aperture measurement is developed using a simple circuit model for the antenna-oscillator system. A dipole and a PIFA with a reactive input impedance at the application frequency were measured. The antenna aperture was measured to an accuracy of 9{\%}, and the measurements complied with simulated and measured references. The method provides simple and accurate bandwidth and radiation pattern measurements with the reactive load the antenna is designed to work with.",
author = "Pekka Pursula and Mervi Hirvonen and Kaarle Jaakkola and Timo Varpula",
year = "2007",
doi = "10.1109/TAP.2007.905821",
language = "English",
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Antenna effective aperture measurement with backscattering modulation. / Pursula, Pekka; Hirvonen, Mervi; Jaakkola, Kaarle; Varpula, Timo.

In: IEEE Transactions on Antennas and Propagation, Vol. 55, No. 10, 2007, p. 2836-2843.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Antenna effective aperture measurement with backscattering modulation

AU - Pursula, Pekka

AU - Hirvonen, Mervi

AU - Jaakkola, Kaarle

AU - Varpula, Timo

PY - 2007

Y1 - 2007

N2 - A scattering measurement method for antenna characterization is described. The antenna backscattering is modulated by an oscillator circuit. The modulation begins, when a known RF power is transferred to the oscillator circuit from the antenna. This enables the measurement of the effective aperture of the antenna, from which the antenna bandwidth and radiation pattern are obtained. A theory for antenna aperture measurement is developed using a simple circuit model for the antenna-oscillator system. A dipole and a PIFA with a reactive input impedance at the application frequency were measured. The antenna aperture was measured to an accuracy of 9%, and the measurements complied with simulated and measured references. The method provides simple and accurate bandwidth and radiation pattern measurements with the reactive load the antenna is designed to work with.

AB - A scattering measurement method for antenna characterization is described. The antenna backscattering is modulated by an oscillator circuit. The modulation begins, when a known RF power is transferred to the oscillator circuit from the antenna. This enables the measurement of the effective aperture of the antenna, from which the antenna bandwidth and radiation pattern are obtained. A theory for antenna aperture measurement is developed using a simple circuit model for the antenna-oscillator system. A dipole and a PIFA with a reactive input impedance at the application frequency were measured. The antenna aperture was measured to an accuracy of 9%, and the measurements complied with simulated and measured references. The method provides simple and accurate bandwidth and radiation pattern measurements with the reactive load the antenna is designed to work with.

U2 - 10.1109/TAP.2007.905821

DO - 10.1109/TAP.2007.905821

M3 - Article

VL - 55

SP - 2836

EP - 2843

JO - IEEE Transactions on Antennas and Propagation

JF - IEEE Transactions on Antennas and Propagation

SN - 0018-926X

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ER -