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

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

2 Citations (Scopus)

1 Downloads (Pure)

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.

Original language	English
Title of host publication	Proceedings of the 6th European Conference on Antennas and Propagation (EUCAP), 26-30 March 2012, Prague, Czech Republic
Place of Publication	Piscataway
Publisher	Institute of Electrical and Electronics Engineers
Pages	1077-1080
DOIs	https://doi.org/10.1109/EuCAP.2012.6206432
Publication status	Published - 2012
Event	6th European Conference on Antennas and Propagation, EuCAP 2012 - Prague, Czech Republic Duration: 26 Mar 2012 → 30 Mar 2012 Conference number: 6 http://www.eucap2012.org/

Conference

Conference	6th European Conference on Antennas and Propagation, EuCAP 2012
Abbreviated title	EuCAP 2012
Country/Territory	Czech Republic
City	Prague
Period	26/03/12 → 30/03/12
Internet address	http://www.eucap2012.org/

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10.1109/EuCAP.2012.6206432

Cite this

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 (pp. 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",

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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, pp. 1077-1080, 6th European Conference on Antennas and Propagation, EuCAP 2012, Prague, Czech Republic, 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. p. 1077-1080.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

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AU - Zamanifekri, A.

AU - Zhang, C.

AU - Arts, M.J.

AU - Cappellen, van, W.A.

N1 - Conference code: 6

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

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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. p. 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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