Improved axial ratio quality for radio telescope applications with a phased array feed

A.B. Smolders; A. Zamanifekri; C. Zhang; M.J. Arts; W.A. Cappellen, van

doi:10.1109/EuCAP.2012.6206432

Improved axial ratio quality for radio telescope applications with a phased array feed

A.B. Smolders, A. Zamanifekri, C. Zhang, M.J. Arts, W.A. Cappellen, van

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/Congresprocedure › Conferentiebijdrage › Academic › peer review

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cularly polarized radiation is frequently used in satellite communication. This paper discusses how circular polarization can be generated by means of an array of linearly-polarized antenna elements by applying the sequential rotation technique. A calibration method is used to improve the axial ratio from ±30° to ±60° off bore sight by using a 4-bit accuracy for the active components. A measurement campaign was organized based on a demonstrator developed at ASTRON. The calibration of the axial ratio is applied to the measured element patterns of the ASTRON egg-crate structure antenna array operating at 7.14 GHz. The results prove that the axial ratio can be improved significantly. Finally the same technique will be applied to a linear array operating at 20 GHz with sequential rotation configuration in front of the reflector to improve the axial ratio in the boresight direction.

Originele taal-2	Engels
Titel	Proceedings of the 6th European Conference on Antennas and Propagation (EUCAP), 26-30 March 2012, Prague, Czech Republic
Plaats van productie	Piscataway
Uitgeverij	Institute of Electrical and Electronics Engineers
Pagina's	1077-1080
DOI's	https://doi.org/10.1109/EuCAP.2012.6206432
Status	Gepubliceerd - 2012
Evenement	6th European Conference on Antennas and Propagation, EuCAP 2012 - Prague, Tsjechië Duur: 26 mrt. 2012 → 30 mrt. 2012 Congresnummer: 6 http://www.eucap2012.org/

Congres

Congres	6th European Conference on Antennas and Propagation, EuCAP 2012
Verkorte titel	EuCAP 2012
Land/Regio	Tsjechië
Stad	Prague
Periode	26/03/12 → 30/03/12
Ander	Sixth European Conference on Antennas and Propagation (EuCap), 26-30 March 2012, Prague, Czech Republic
Internet adres	http://www.eucap2012.org/

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10.1109/EuCAP.2012.6206432

Citeer dit

Smolders, A. B., Zamanifekri, A., Zhang, C., Arts, M. J., & Cappellen, van, W. A. (2012). Improved axial ratio quality for radio telescope applications with a phased array feed. In Proceedings of the 6th European Conference on Antennas and Propagation (EUCAP), 26-30 March 2012, Prague, Czech Republic (blz. 1077-1080). Institute of Electrical and Electronics Engineers. https://doi.org/10.1109/EuCAP.2012.6206432

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title = "Improved axial ratio quality for radio telescope applications with a phased array feed",

abstract = "cularly polarized radiation is frequently used in satellite communication. This paper discusses how circular polarization can be generated by means of an array of linearly-polarized antenna elements by applying the sequential rotation technique. A calibration method is used to improve the axial ratio from ±30° to ±60° off bore sight by using a 4-bit accuracy for the active components. A measurement campaign was organized based on a demonstrator developed at ASTRON. The calibration of the axial ratio is applied to the measured element patterns of the ASTRON egg-crate structure antenna array operating at 7.14 GHz. The results prove that the axial ratio can be improved significantly. Finally the same technique will be applied to a linear array operating at 20 GHz with sequential rotation configuration in front of the reflector to improve the axial ratio in the boresight direction.",

author = "A.B. Smolders and A. Zamanifekri and C. Zhang and M.J. Arts and {Cappellen, van}, W.A.",

year = "2012",

doi = "10.1109/EuCAP.2012.6206432",

language = "English",

pages = "1077--1080",

booktitle = "Proceedings of the 6th European Conference on Antennas and Propagation (EUCAP), 26-30 March 2012, Prague, Czech Republic",

publisher = "Institute of Electrical and Electronics Engineers",

address = "United States",

note = "6th European Conference on Antennas and Propagation, EuCAP 2012, EuCAP 2012 ; Conference date: 26-03-2012 Through 30-03-2012",

url = "http://www.eucap2012.org/",

}

Smolders, AB, Zamanifekri, A, Zhang, C, Arts, MJ & Cappellen, van, WA 2012, Improved axial ratio quality for radio telescope applications with a phased array feed. in Proceedings of the 6th European Conference on Antennas and Propagation (EUCAP), 26-30 March 2012, Prague, Czech Republic. Institute of Electrical and Electronics Engineers, Piscataway, blz. 1077-1080, 6th European Conference on Antennas and Propagation, EuCAP 2012, Prague, Tsjechië, 26/03/12. https://doi.org/10.1109/EuCAP.2012.6206432

Improved axial ratio quality for radio telescope applications with a phased array feed. / Smolders, A.B.; Zamanifekri, A.; Zhang, C. et al.
Proceedings of the 6th European Conference on Antennas and Propagation (EUCAP), 26-30 March 2012, Prague, Czech Republic. Piscataway: Institute of Electrical and Electronics Engineers, 2012. blz. 1077-1080.

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/Congresprocedure › Conferentiebijdrage › Academic › peer review

TY - GEN

T1 - Improved axial ratio quality for radio telescope applications with a phased array feed

AU - Smolders, A.B.

AU - Zamanifekri, A.

AU - Zhang, C.

AU - Arts, M.J.

AU - Cappellen, van, W.A.

N1 - Conference code: 6

PY - 2012

Y1 - 2012

N2 - cularly polarized radiation is frequently used in satellite communication. This paper discusses how circular polarization can be generated by means of an array of linearly-polarized antenna elements by applying the sequential rotation technique. A calibration method is used to improve the axial ratio from ±30° to ±60° off bore sight by using a 4-bit accuracy for the active components. A measurement campaign was organized based on a demonstrator developed at ASTRON. The calibration of the axial ratio is applied to the measured element patterns of the ASTRON egg-crate structure antenna array operating at 7.14 GHz. The results prove that the axial ratio can be improved significantly. Finally the same technique will be applied to a linear array operating at 20 GHz with sequential rotation configuration in front of the reflector to improve the axial ratio in the boresight direction.

AB - cularly polarized radiation is frequently used in satellite communication. This paper discusses how circular polarization can be generated by means of an array of linearly-polarized antenna elements by applying the sequential rotation technique. A calibration method is used to improve the axial ratio from ±30° to ±60° off bore sight by using a 4-bit accuracy for the active components. A measurement campaign was organized based on a demonstrator developed at ASTRON. The calibration of the axial ratio is applied to the measured element patterns of the ASTRON egg-crate structure antenna array operating at 7.14 GHz. The results prove that the axial ratio can be improved significantly. Finally the same technique will be applied to a linear array operating at 20 GHz with sequential rotation configuration in front of the reflector to improve the axial ratio in the boresight direction.

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DO - 10.1109/EuCAP.2012.6206432

M3 - Conference contribution

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BT - Proceedings of the 6th European Conference on Antennas and Propagation (EUCAP), 26-30 March 2012, Prague, Czech Republic

PB - Institute of Electrical and Electronics Engineers

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Smolders AB, Zamanifekri A, Zhang C, Arts MJ, Cappellen, van WA. Improved axial ratio quality for radio telescope applications with a phased array feed. In Proceedings of the 6th European Conference on Antennas and Propagation (EUCAP), 26-30 March 2012, Prague, Czech Republic. Piscataway: Institute of Electrical and Electronics Engineers. 2012. blz. 1077-1080 doi: 10.1109/EuCAP.2012.6206432

Improved axial ratio quality for radio telescope applications with a phased array feed

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