Abstract
| 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 | Portugal |
| City | Lisbon |
| Period | 12/04/2015 → 17/04/2015 |
| Internet address |
Keywords
- Radiometers
- Reflector antenna
- Phase array feed
Cite this
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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
AU - Iupikov, O. A.
AU - Ivashina, M. V.
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.
PY - 2015
Y1 - 2015
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
SN - 788890701856
BT - Proceedings of the 9th European Conference on Antennas and Propagation (EuCAP)
PB - IEEE
ER -