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Multibeam dual-circularly polarized reflectarray for connected and autonomous vehicles

Multibeam dual-circularly polarized reflectarray for connected and autonomous vehicles
Multibeam dual-circularly polarized reflectarray for connected and autonomous vehicles

This paper presents a multibeam dual-circularly polarized (CP) reflectarray for connected and autonomous vehicles. The developed reflectarray uses one aperture to realize dual-band and multibeam operation. At each frequency band, there are two simultaneously shaped beams with different circular polarizations. Totally four beams are obtained with a single feed and each of the beams can be independently controlled. A simple but effective polarization suppression technique is introduced to suppress cross polarizations at large scan angles so the CP beam of the reflectarray can be configured to point at large angles. Thus, the present reflectarray is suitable to be applied to vehicles for reliable high data-rate satellite communications. To validate the design concept, an X-band prototype was designed, fabricated, and measured. The design concept is flexible and can be applied to the design of dual-band, dual-CP reflectarray with different frequencies ratios. Moreover, the present design can also be extended to a continuous beam-steering design by incorporating phase shifters.

circular polarization (CP), dual-band, multibeam, reflectarray, Satcom-on-the-Move, Vehicles
0018-9545
3574-3585
Luo, Qi
7ed14e22-a686-4c46-ba51-7a806ee69070
Gao, Steven
802c1bb4-849d-4b12-b32a-1548a0732bed
Li, Wenting
933985de-dbc0-40ba-a02a-aeeb8760b987
Sobhy, Mohammed
40a3e0ad-d17e-4a05-853f-11b8a509795d
Bakaimi, Ioanna
3c4e7000-517c-41fa-84db-c45641125e4d
De Groot, C. H.Kees
92cd2e02-fcc4-43da-8816-c86f966be90c
Hayden, Brian
aea74f68-2264-4487-9d84-5b12ddbbb331
Reaney, Ian
0b432c38-9406-4216-aff4-a42bba70527b
Yang, Xuexia
d6b92d56-dd78-41c8-8c59-5757d6b7fc7b
Luo, Qi
7ed14e22-a686-4c46-ba51-7a806ee69070
Gao, Steven
802c1bb4-849d-4b12-b32a-1548a0732bed
Li, Wenting
933985de-dbc0-40ba-a02a-aeeb8760b987
Sobhy, Mohammed
40a3e0ad-d17e-4a05-853f-11b8a509795d
Bakaimi, Ioanna
3c4e7000-517c-41fa-84db-c45641125e4d
De Groot, C. H.Kees
92cd2e02-fcc4-43da-8816-c86f966be90c
Hayden, Brian
aea74f68-2264-4487-9d84-5b12ddbbb331
Reaney, Ian
0b432c38-9406-4216-aff4-a42bba70527b
Yang, Xuexia
d6b92d56-dd78-41c8-8c59-5757d6b7fc7b

Luo, Qi, Gao, Steven, Li, Wenting, Sobhy, Mohammed, Bakaimi, Ioanna, De Groot, C. H.Kees, Hayden, Brian, Reaney, Ian and Yang, Xuexia (2019) Multibeam dual-circularly polarized reflectarray for connected and autonomous vehicles. IEEE Transactions on Vehicular Technology, 68 (4), 3574-3585, [8633341]. (doi:10.1109/TVT.2019.2897218).

Record type: Article

Abstract

This paper presents a multibeam dual-circularly polarized (CP) reflectarray for connected and autonomous vehicles. The developed reflectarray uses one aperture to realize dual-band and multibeam operation. At each frequency band, there are two simultaneously shaped beams with different circular polarizations. Totally four beams are obtained with a single feed and each of the beams can be independently controlled. A simple but effective polarization suppression technique is introduced to suppress cross polarizations at large scan angles so the CP beam of the reflectarray can be configured to point at large angles. Thus, the present reflectarray is suitable to be applied to vehicles for reliable high data-rate satellite communications. To validate the design concept, an X-band prototype was designed, fabricated, and measured. The design concept is flexible and can be applied to the design of dual-band, dual-CP reflectarray with different frequencies ratios. Moreover, the present design can also be extended to a continuous beam-steering design by incorporating phase shifters.

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More information

Accepted/In Press date: 29 January 2019
e-pub ahead of print date: 4 February 2019
Published date: 1 April 2019
Keywords: circular polarization (CP), dual-band, multibeam, reflectarray, Satcom-on-the-Move, Vehicles

Identifiers

Local EPrints ID: 430900
URI: http://eprints.soton.ac.uk/id/eprint/430900
ISSN: 0018-9545
PURE UUID: d6945eb3-ffe6-4ab9-a3c6-f31aecd27ccd
ORCID for Ioanna Bakaimi: ORCID iD orcid.org/0000-0002-8083-4413
ORCID for C. H.Kees De Groot: ORCID iD orcid.org/0000-0002-3850-7101
ORCID for Brian Hayden: ORCID iD orcid.org/0000-0002-7762-1812

Catalogue record

Date deposited: 17 May 2019 16:30
Last modified: 07 Oct 2020 02:14

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Contributors

Author: Qi Luo
Author: Steven Gao
Author: Wenting Li
Author: Mohammed Sobhy
Author: Ioanna Bakaimi ORCID iD
Author: Brian Hayden ORCID iD
Author: Ian Reaney
Author: Xuexia Yang

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