Antenna effective aperture measurement with backscattering modulation

Pekka Pursula; Mervi Hirvonen; Kaarle Jaakkola; Timo Varpula

doi:10.1109/TAP.2007.905821

Antenna effective aperture measurement with backscattering modulation

Pekka Pursula, Mervi Hirvonen, Kaarle Jaakkola, Timo Varpula

Research output: Contribution to journal › Article › Scientific › peer-review

30 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 language	English
Pages (from-to)	2836-2843
Journal	IEEE Transactions on Antennas and Propagation
Volume	55
Issue number	10
DOIs	https://doi.org/10.1109/TAP.2007.905821
Publication status	Published - 2007
MoE publication type	A1 Journal article-refereed

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10.1109/TAP.2007.905821

https://publications.vtt.fi/julkaisut/muut/2007/Aperture-TaP2007.pdf

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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",

volume = "55",

pages = "2836--2843",

journal = "IEEE Transactions on Antennas and Propagation",

issn = "0018-926X",

publisher = "IEEE Institute of Electrical and Electronic Engineers",

number = "10",

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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

SN - 0018-926X

VL - 55

SP - 2836

EP - 2843

JO - IEEE Transactions on Antennas and Propagation

JF - IEEE Transactions on Antennas and Propagation

IS - 10

ER -

Antenna effective aperture measurement with backscattering modulation

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