International Workshop on Phased Array Antenna Systems for Radio
Astronomy
May 3-5, 2010
Technical Program
Organizers:
Karl F. Warnick and Brian D. Jeffs,
Marianna Ivashina,
ASTRON, The
Monday, May 3
Updates on Worldwide Phased Array Development Efforts
9:00am "APERTIF Phased Array Feed
development for the Westerbork Synthesis Radio Telescope, W.A. van Cappellen, ASTRON,
The
9:30 Aperture Array
Developments at ASTRON, S. Wijnholds, ASTRON, The
10:00 Chequerboard Phased Array Feed Testing for ASKAP, A.
Chippendale, J. O’Sullivan, J. Reynolds,
R. Gough, D. Hayman, S. Hay, R. Shaw, and R. Qiao, CSIRO,
10:30 Morning break
11:00 Obtaining the Simulated
Response of a 19 Element Focal Phased Array for the Feasibility Study for the
11:30 PAF for the FAST Telescope,
Jin, C., Zhu, K., Gan, H., and Nan, R., National
Astronomical Observatories, Chinese
12:00 Active Impedance Matched Dual-Polarization
Phased Array Feed for the GBT, K. F. Warnick1, D. E. Carter1,
T. Webb1, B. D. Jeffs1, R. Norrod2, J. R.
Fisher3, 1Brigham Young University, USA, 2National
Radio Astronomy Observatory, Green Bank, WV, USA, 3National Radio Astronomy Observatory, Charlottesville,
VA, USA
12:30 Lunch (provided at workshop venue)
System Level Phased Array Issues
2:00 The Science Case for
APERTIF, G. Heald1, T. Oosterloo1,2, and M.
Verheijen2, 1ASTRON,
The
2:30 Analysis of Reflector
and Feed Scattering and Coupling Effects on the Sensitivity of Phased Array Feeds, S. Hay1,
R. Mittra2, and N. Huang2,3, 1CSIRO ICT Centre, Australia, 2EMC Lab, Pennsylvania State University, USA,
3Yun-Tze University, Taiwan
3:00 Eliminating Sensitivity
Ripples in Prime Focus Reflectors with Low-scattering Phased Array Feeds, W.A. van Cappellen and L. Bakker, ASTRON, The
3:30 Afternoon break
4:00 Practical Aspects of Focal
Plane Array Testing: Lessons from an FPA Test-bed at CSIRO, Marsfield, D. Hayman1-3,
T. Bird2,3, K. Esselle3, and P. Hall4, 1CSIRO Astronomy and Space Science, Australia, 2CSIRO ICT Centre, Australia, 3Macquarie University, Australia, 4Curtin University
of Technology, Australia
4:30 Discussion
Tuesday, May 4
Calibration, Beamforming and Polarimetry
with Astronomical Phased Arrays
9:00am Calibration of Radio Astronomical Phased Arrays, S. Wijnholds, ASTRON,
The Netherlands
9:30 Deep Nulling
Interference Cancelation for Phased Array Feeds, J. Landon, B. D. Jeffs, and K. F.
Warnick,
10:00 Beamformer Design Methods
for Phased Array Feeds, M. Elmer, B. D. Jeffs,
and K. F. Warnick,
10:30 Morning break
11:00 On the Polarization
Diversity of Aperture Array Antennas for SKA Wide-Field Polarimetry, R. Maaskant and T. D. Carozzi, ASTRON, The
11:30 Polarimetry with
Phased-Array Feeds, B. Veidt, National Research Council of
12:00 Calibration and Beamforming
for Polarimetric Phased Array Feeds, K. F. Warnick, B. Jeffs, and T. Webb,
12:30 Lunch (provided at workshop site)
Design
Optimization of Phased Arrays and RF Electronics
2:00 Numerical Approach for
the Analysis and Optimization of Phased Array Feed Systems, M.
Ivashina, ASTRON,
The
2:30 Circular Phased Array
of Wideband 3D Vivaldi Antennas for Radio Astronomy
3:00 Low Noise Amplifiers
for Phased Array Feeds, S. Weinreb, California Institute of
3:30 Afternoon break
4:00 Comparison of
Tuner-based Noise-parameter Extraction Methods for Measurement of Room-temperature SKA LNAs, L. Belostotski,
4:30 Photonic Integrated
Beamformers for Broadband Radio Astronomy, M. Burla1, R. Khan1, D. Marpaung1,
C. Roeloffzen1, P. Maat2, K. Dijkstra2, A. Leinse3, M. Hoekman3,
and R. Heideman3, 1Telecommunication Engineering
Group, CTIT Research Institute, University of Twente,
the Netherlands, 2ASTRON, The Netherlands, 3LioniX B.V., The Netherlands
6:30 Barbeque Banquet Dinner (
Wednesday, May 5
SKA Technology Development
9:00am Shaped Optics and
Phased-Array Feeds, B. Veidt, National Research Council of
9:30 Non-periodic Arrays for
Radio-astronomy Applications, D. González-Ovejero,
E. de Lera Acedo, N. Razavi-Ghods, L.
E. García-Muñoz, and C. Craeye,
Université Catholique Louvain,
10:00 Sky Noise and Sensitivity
Studies of Array Configurations and Antenna Elements for the Low-Frequency Band of the SKA, E.
de Lera Acedo1, N. Razavi-Ghods1, E.
García2, P. J.
Duffett-Smith1, and P. Alexander1, 1University of Cambridge, UK, 2University Carlos
III of Madrid, Spain
10:30 Morning break
11:00 On-going work with the
Cryogenic Eleven Antenna at the MIT Haystack Observatory, C. Beaudoin1, P.-S. Kildal2,
J. Yang2, M. Pantaleev3, and B. Klein4, 1MIT Haystack Observatory,USA, 2Chalmers
Institute of Technology, Sweden, 3Onsala Space Observatory, Sweden, 4University of the
Witwatersrand, South Africa
11:30 Steps Toward a Cryogenic L-band Phased
Array Feed for Reflector Antennas, R. Norrod1, J. R. Fisher2,
B. Jeffs3, and K. F. Warnick3, 1National Radio Astronomy Observatory,
Green Bank, WV, USA, 2National Radio Astronomy Observatory, Charlottesville, VA, USA, 3Brigham
Young University, USA
12:00 System Noise Calculations
over the Decade Bandwidth of the Eleven Feed, B. Klein1,2, P. Kildal2, J. Yang2,
M. Pantaleev3, L. Helldner3,and C. Beaudoin4,
1University of the Witwatersrand, South Africa, 2
Chalmers Institute of Technology, Sweden, 3 Onsala
Space Observatory, Sweden, 4
MIT Haystack Observatory, USA
12:30 Lunch (provided at workshop venue)
2:00 (Presentation Withdrawn) FIDA3: Design and
Characterization of a Differential Active Array Demonstrator for the SKA, O. Garcia-Perez1,2, L. E. Garcia-Muñoz1,
D. Segovia-Vargas1, V. Gonzalez-Posadas3, and J. A.
Lopez-Fernandez2, 1DTSC,
Univ. Carlos III de Madrid, Spain, 2OAN, Instituto Geográfico Nacional, Spain, 3DIAC, Univ.
2:30 Discussion
3:00 Afternoon break (general workshop sessions end)
3:30 PAFSKA Meeting
(Dave DeBoer)