An Optimal Beamforming Algorithm for Phased-Array Antennas Used in Multi-Beam Spaceborne Radiometers

O. A. Iupikov; M. V. Ivashina; K. Pontoppidan; P. H. Nielsen; C. Cappellin; Niels Skou; Sten Schmidl Søbjærg; A. Ihle; D. Hartmann; K. v. 't Klooster; P. H.  Nielsen

An Optimal Beamforming Algorithm for Phased-Array Antennas Used in Multi-Beam Spaceborne Radiometers

O. A. Iupikov, M. V. Ivashina, K. Pontoppidan, P. H. Nielsen, C. Cappellin, Niels Skou, Sten Schmidl Søbjærg, A. Ihle, D. Hartmann, K. v. 't Klooster, P. H. Nielsen

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

Abstract

Strict requirements for future spaceborne ocean missions using multi-beam radiometers call for new antenna technologies, such as digital beamforming phased arrays. In this paper, we present an optimal beamforming algorithm for phased-array antenna systems designed to operate as focal plane arrays (FPA) in push-broom radiometers. This algorithm is formulated as an optimization procedure that maximizes the beam efficiency, while minimizing the side-lobe and cross-polarization power in the area of Earth, subject to a constraint on the beamformer dynamic range. The proposed algorithm is applied to a FPA feeding a torus reflector antenna (designed under the contract with the European Space Agency) and tested for multiple beams. The results demonstrate an improved performance in terms of the optimized beam characteristics, yielding much higher spatial and radiometric resolution as well as much closer distance to coast, as compared to the present-day systems.

Original language	English
Title of host publication	Proceedings of the 9th European Conference on Antennas and Propagation (EuCAP)
Number of pages	5
Publisher	IEEE
Publication date	2015
ISBN (Print)	788890701856
Publication status	Published - 2015
Event	9th European Conference on Antennas and Propagation - Lisbon, Portugal Duration: 12 Apr 2015 → 17 Apr 2015 http://www.eucap2015.org/

Conference

Conference	9th European Conference on Antennas and Propagation
Country/Territory	Portugal
City	Lisbon
Period	12/04/2015 → 17/04/2015
Internet address	http://www.eucap2015.org/

Keywords

Radiometers
Reflector antenna
Phase array feed

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Iupikov, O. A. ; Ivashina, M. V. ; Pontoppidan, K. ; Nielsen, P. H. ; Cappellin, C. ; Skou, Niels ; Søbjærg, Sten Schmidl ; Ihle, A. ; Hartmann, D. ; 't Klooster, K. v. ; Nielsen, P. H. . / An Optimal Beamforming Algorithm for Phased-Array Antennas Used in Multi-Beam Spaceborne Radiometers. Proceedings of the 9th European Conference on Antennas and Propagation (EuCAP). IEEE, 2015.

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title = "An Optimal Beamforming Algorithm for Phased-Array Antennas Used in Multi-Beam Spaceborne Radiometers",

abstract = "Strict requirements for future spaceborne ocean missions using multi-beam radiometers call for new antenna technologies, such as digital beamforming phased arrays. In this paper, we present an optimal beamforming algorithm for phased-array antenna systems designed to operate as focal plane arrays (FPA) in push-broom radiometers. This algorithm is formulated as an optimization procedure that maximizes the beam efficiency, while minimizing the side-lobe and cross-polarization power in the area of Earth, subject to a constraint on the beamformer dynamic range. The proposed algorithm is applied to a FPA feeding a torus reflector antenna (designed under the contract with the European Space Agency) and tested for multiple beams. The results demonstrate an improved performance in terms of the optimized beam characteristics, yielding much higher spatial and radiometric resolution as well as much closer distance to coast, as compared to the present-day systems.",

keywords = "Radiometers, Reflector antenna, Phase array feed",

author = "Iupikov, {O. A.} and Ivashina, {M. V.} and K. Pontoppidan and Nielsen, {P. H.} and C. Cappellin and Niels Skou and S{\o}bj{\ae}rg, {Sten Schmidl} and A. Ihle and D. Hartmann and {'t Klooster}, {K. v.} and Nielsen, {P. H.}",

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language = "English",

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booktitle = "Proceedings of the 9th European Conference on Antennas and Propagation (EuCAP)",

publisher = "IEEE",

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note = "9th European Conference on Antennas and Propagation, EuCAP'2015 ; Conference date: 12-04-2015 Through 17-04-2015",

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Iupikov, OA, Ivashina, MV, Pontoppidan, K, Nielsen, PH, Cappellin, C, Skou, N , Søbjærg, SS, Ihle, A, Hartmann, D, 't Klooster, KV & Nielsen, PH 2015, An Optimal Beamforming Algorithm for Phased-Array Antennas Used in Multi-Beam Spaceborne Radiometers. in Proceedings of the 9th European Conference on Antennas and Propagation (EuCAP). IEEE, 9th European Conference on Antennas and Propagation, Lisbon, Portugal, 12/04/2015.

An Optimal Beamforming Algorithm for Phased-Array Antennas Used in Multi-Beam Spaceborne Radiometers. / Iupikov, O. A.; Ivashina, M. V.; Pontoppidan, K.; Nielsen, P. H.; Cappellin, C.; Skou, Niels ; Søbjærg, Sten Schmidl; Ihle, A.; Hartmann, D.; 't Klooster, K. v.; Nielsen, P. H. .

Proceedings of the 9th European Conference on Antennas and Propagation (EuCAP). IEEE, 2015.

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

TY - GEN

T1 - An Optimal Beamforming Algorithm for Phased-Array Antennas Used in Multi-Beam Spaceborne Radiometers

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AU - Pontoppidan, K.

AU - Nielsen, P. H.

AU - Cappellin, C.

AU - Skou, Niels

AU - Søbjærg, Sten Schmidl

AU - Ihle, A.

AU - Hartmann, D.

AU - 't Klooster, K. v.

AU - Nielsen, P. H.

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N2 - Strict requirements for future spaceborne ocean missions using multi-beam radiometers call for new antenna technologies, such as digital beamforming phased arrays. In this paper, we present an optimal beamforming algorithm for phased-array antenna systems designed to operate as focal plane arrays (FPA) in push-broom radiometers. This algorithm is formulated as an optimization procedure that maximizes the beam efficiency, while minimizing the side-lobe and cross-polarization power in the area of Earth, subject to a constraint on the beamformer dynamic range. The proposed algorithm is applied to a FPA feeding a torus reflector antenna (designed under the contract with the European Space Agency) and tested for multiple beams. The results demonstrate an improved performance in terms of the optimized beam characteristics, yielding much higher spatial and radiometric resolution as well as much closer distance to coast, as compared to the present-day systems.

AB - Strict requirements for future spaceborne ocean missions using multi-beam radiometers call for new antenna technologies, such as digital beamforming phased arrays. In this paper, we present an optimal beamforming algorithm for phased-array antenna systems designed to operate as focal plane arrays (FPA) in push-broom radiometers. This algorithm is formulated as an optimization procedure that maximizes the beam efficiency, while minimizing the side-lobe and cross-polarization power in the area of Earth, subject to a constraint on the beamformer dynamic range. The proposed algorithm is applied to a FPA feeding a torus reflector antenna (designed under the contract with the European Space Agency) and tested for multiple beams. The results demonstrate an improved performance in terms of the optimized beam characteristics, yielding much higher spatial and radiometric resolution as well as much closer distance to coast, as compared to the present-day systems.

KW - Radiometers

KW - Reflector antenna

KW - Phase array feed

M3 - Article in proceedings

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BT - Proceedings of the 9th European Conference on Antennas and Propagation (EuCAP)

PB - IEEE

T2 - 9th European Conference on Antennas and Propagation

Y2 - 12 April 2015 through 17 April 2015

ER -

An Optimal Beamforming Algorithm for Phased-Array Antennas Used in Multi-Beam Spaceborne Radiometers

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