1. JGBdV RadioNet Westerbork Nov 2006 1 PHAROS PHased Arrays for Reflector Observing Systems THE UNIVERSITY OF BIRMINGHAM

2. JGBdV RadioNet Westerbork Nov 2006 2 Faraday Prototype  Test runs at WSRT repeated in July and October this year  Good results on the final run: Full match between simulation and measurements!

3. JGBdV RadioNet Westerbork Nov 2006 3 Faraday Prototype  More details reported next week …….

4. JGBdV RadioNet Westerbork Nov 2006 4 RECAP PHAROS System Parameters  Frequency range 4 - 8 GHz (optimal for 4.0 - 7.0 GHz)  Number of antenna elements 2x (14 x 13) = 364  Number of beams 4, with 13 elements per beam  Polarisation single  T sys < 20 K

5. JGBdV RadioNet Westerbork Nov 2006 5 Cryostat enclosure

6. JGBdV RadioNet Westerbork Nov 2006 6 Beam-former

7. JGBdV RadioNet Westerbork Nov 2006 7 Antenna array

8. JGBdV RadioNet Westerbork Nov 2006 8

9. 9 power splitters beam- former LNAs Beam-former

10. JGBdV RadioNet Westerbork Nov 2006 10 Cryostat

11. JGBdV RadioNet Westerbork Nov 2006 11 Control and calibration

12. JGBdV RadioNet Westerbork Nov 2006 12 Advanced technology MMIC run  70nm GaAs mHEMT run executed Designs from, MECSA/INAF, ASTRON and CSIRO LNAs, 0.4GHz - - 100GHz Vectormods, phaseshifter

13. JGBdV RadioNet Westerbork Nov 2006 13 Summary progress  Antenna array: prototyping completed, to be ordered  MMICs: Produced tested and available  Cryostat: design completed, to be ordered Waiting for BF finalization  Beamformer: prototyping completed, final design needed  Control and Calibration: principle design done

14. JGBdV RadioNet Westerbork Nov 2006 14 Summary progress, constraints  UMAN progress on hold for 4 months due to priority shift  UMAN design/production and test of the BF on the critical path due to (too) late start: direct impact on schedule Delay causes project efficiency problems (€?)

15. JGBdV RadioNet Westerbork Nov 2006 15 Summary progress, euros  MECSA: completion expected within budget  ASTRON: manhour costs overrun expected  INAF: no budget constraints  UBIR: no budget constraints  TCfA: no budget constraints  UMAN: tbd