Horizontally polarized 360° beam-steerable frequency-reconfigurable antenna

Weijie Gao; Shengjian Jammy Chen; Withawat Withayachumnankul; Christophe Fumeaux

doi:10.1109/TAP.2019.2916612

Horizontally polarized 360° beam-steerable frequency-reconfigurable antenna

Weijie Gao, Shengjian Jammy Chen, Withawat Withayachumnankul, Christophe Fumeaux

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

27 Citations (Scopus)

Abstract

In this paper, a 360° beam-steerable frequency-reconfigurable antenna with horizontal polarization is proposed. The antenna is based on an Alford loop and a parasitic circular array of tunable electric-LC (ELC) resonators. It is able to operate in either omnidirectional or directional mode allowing 360° beamsteering in the azimuth plane with an angular resolution of 18°. The frequency-tunable range is from 2.0 to 2.4 GHz (18.2% relative bandwidth). By introducing a 3-D printed dielectric lens radome and two plates with radial Vivaldi-shaped slots, the realized gain and front-to-back ratio (FBR) can be increased. The experimental characterization of an antenna prototype validates the design. The measured realized gain ranges from 6.2 to 8.2 dBi, and FBR is between 13 and 23 dB.

Original language	English
Article number	8718498
Pages (from-to)	5231-5242
Number of pages	12
Journal	IEEE Transactions on Antennas and Propagation
Volume	67
Issue number	8
DOIs	https://doi.org/10.1109/TAP.2019.2916612
Publication status	Published - Aug 2019
Externally published	Yes

Keywords

Alford loop
beamsteering
frequency reconfigurable antenna
horizontally polarized antenna

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10.1109/TAP.2019.2916612Licence: In Copyright

Cite this

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title = "Horizontally polarized 360° beam-steerable frequency-reconfigurable antenna",

abstract = "In this paper, a 360° beam-steerable frequency-reconfigurable antenna with horizontal polarization is proposed. The antenna is based on an Alford loop and a parasitic circular array of tunable electric-LC (ELC) resonators. It is able to operate in either omnidirectional or directional mode allowing 360° beamsteering in the azimuth plane with an angular resolution of 18°. The frequency-tunable range is from 2.0 to 2.4 GHz (18.2% relative bandwidth). By introducing a 3-D printed dielectric lens radome and two plates with radial Vivaldi-shaped slots, the realized gain and front-to-back ratio (FBR) can be increased. The experimental characterization of an antenna prototype validates the design. The measured realized gain ranges from 6.2 to 8.2 dBi, and FBR is between 13 and 23 dB.",

keywords = "Alford loop, beamsteering, frequency reconfigurable antenna, horizontally polarized antenna",

author = "Weijie Gao and Chen, {Shengjian Jammy} and Withawat Withayachumnankul and Christophe Fumeaux",

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AU - Withayachumnankul, Withawat

AU - Fumeaux, Christophe

PY - 2019/8

Y1 - 2019/8

N2 - In this paper, a 360° beam-steerable frequency-reconfigurable antenna with horizontal polarization is proposed. The antenna is based on an Alford loop and a parasitic circular array of tunable electric-LC (ELC) resonators. It is able to operate in either omnidirectional or directional mode allowing 360° beamsteering in the azimuth plane with an angular resolution of 18°. The frequency-tunable range is from 2.0 to 2.4 GHz (18.2% relative bandwidth). By introducing a 3-D printed dielectric lens radome and two plates with radial Vivaldi-shaped slots, the realized gain and front-to-back ratio (FBR) can be increased. The experimental characterization of an antenna prototype validates the design. The measured realized gain ranges from 6.2 to 8.2 dBi, and FBR is between 13 and 23 dB.

AB - In this paper, a 360° beam-steerable frequency-reconfigurable antenna with horizontal polarization is proposed. The antenna is based on an Alford loop and a parasitic circular array of tunable electric-LC (ELC) resonators. It is able to operate in either omnidirectional or directional mode allowing 360° beamsteering in the azimuth plane with an angular resolution of 18°. The frequency-tunable range is from 2.0 to 2.4 GHz (18.2% relative bandwidth). By introducing a 3-D printed dielectric lens radome and two plates with radial Vivaldi-shaped slots, the realized gain and front-to-back ratio (FBR) can be increased. The experimental characterization of an antenna prototype validates the design. The measured realized gain ranges from 6.2 to 8.2 dBi, and FBR is between 13 and 23 dB.

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KW - beamsteering

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Horizontally polarized 360° beam-steerable frequency-reconfigurable antenna

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Keywords

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