Reconfigurable Axial Ratio in Compact GNSS Antennas

A. Narbudowicz; M. J. Ammann; D. Heberling

doi:10.1109/TAP.2016.2589975

Reconfigurable Axial Ratio in Compact GNSS Antennas

A. Narbudowicz, M. J. Ammann, D. Heberling

School of Electrical and Electronic Engineering

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

11 Citations (Scopus)

Abstract

A new adaptive technique for steering the direction of minimum axial ratio (AR) (<1 dB) toward the reflected or jamming signal is proposed for global navigation satellite systems antennas. It relies on simple, low cost commercially available circularly polarized antenna elements without influencing their gain. Its performance is demonstrated using two different antenna geometries, with five different configurations. The measurements agree well with simulation and theoretical calculations. The technique allows a combined 1-dB AR beamwidth of up to 83°.

Original language	English
Article number	7508997
Pages (from-to)	4530-4533
Number of pages	4
Journal	IEEE Transactions on Antennas and Propagation
Volume	64
Issue number	10
DOIs	https://doi.org/10.1109/TAP.2016.2589975
Publication status	Published - Oct 2016

Keywords

Adaptive antenna
axial ratio (AR)
circular polarization (CP)
global navigation satellite systems (GNSS)
global positioning system (GPS)
reconfigurable antenna

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abstract = "A new adaptive technique for steering the direction of minimum axial ratio (AR) (<1 dB) toward the reflected or jamming signal is proposed for global navigation satellite systems antennas. It relies on simple, low cost commercially available circularly polarized antenna elements without influencing their gain. Its performance is demonstrated using two different antenna geometries, with five different configurations. The measurements agree well with simulation and theoretical calculations. The technique allows a combined 1-dB AR beamwidth of up to 83°.",

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KW - circular polarization (CP)

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KW - global positioning system (GPS)

KW - reconfigurable antenna

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Reconfigurable Axial Ratio in Compact GNSS Antennas

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