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AA-mid design for construction

AA-mid design for construction. The project “SKA Noord-Nederland” is collaboration between ASTRON, Major, Neways, Isiterra and S&T.

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AA-mid design for construction

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  1. AA-mid design for construction The project “SKA Noord-Nederland” is collaboration between ASTRON, Major, Neways, Isiterra and S&T. SKA-NN is supported by subsidies from the EC/EFRO program and the Samenwerkingsverband Noord-Nederland (SNN) Koers Noord program, and from the Province of Drenthe and Groningen. Raymond vandenBrink WP. Tile Development

  2. Overview • Antenna concepts • Various • W-Plates • Quad Modules • Housing concepts • Vacuhouse • Rotohouse • Continuing Array • Tile and Station design The project “SKA Noord-Nederland” is collaboration between ASTRON, Major, Neways, Isiterra and S&T. SKA-NN is supported by subsidies from the EC/EFRO program and the Samenwerkingsverband Noord-Nederland (SNN) Koers Noord program, and from the Province of Drenthe and Groningen. WP. Tile Development

  3. AAVP Antenna WP. Tile Development

  4. ANTENNA CONCEPTS • Various concepts judged on: • Performance • Reliability • Cost WP. Tile Development

  5. POTENTIAL CONCEPTS • TWO potential directions W shaped plates QUAD modules WP. Tile Development

  6. Antenna concept – WplatesASTRON-RP-441_AAVS concept antenna – Wplates.doc • No or less profiles (EMBRACE) • Connection by clinching • Less parts --- Less labor, less time, lower cost • Selfsupporting • Thinner --- Less material, lower cost WP. Tile Development

  7. Antenna concept – WplatesASTRON-RP-441_AAVS concept antenna – Wplates.doc First prototypes to test; • Shape • Production possibility • Assembly • Stiffness (different thicknesses) (0,6 ; 0,8 ; 1,0mm) WP. Tile Development

  8. Antenna concept – WplatesASTRON-RP-441_AAVS concept antenna – Wplates.doc Second prototype includes; • Features to hold feedboard • Cutting strategy to maintain shape • Connection options for testing (ongoing) WP. Tile Development

  9. Antenna concept – WplatesASTRON-RP-441_AAVS concept antenna – Wplates.doc • Support broken after assembly • Proto cost per element : 13,00 Euro • Final cost per element : 0,90 Euro -Based on quotations 2011- WP. Tile Development

  10. Antenna concept – WplatesASTRON-RP-441_AAVS concept antenna – Wplates.doc Under investigation; • Connection between tiles WP. Tile Development

  11. Antenna concept – QUAD ModulesASTRON-RP-XXX_AAVS concept antenna – QUAD Modules.doc • No profiles (EMBRACE) • Connection by clinching • Less parts • Better manageable parts --- Less labor, less time, lower cost • Selfsupporting • Thinner --- Less material, lower cost WP. Tile Development

  12. Antenna concept – QUAD ModulesASTRON-RP-XXX_AAVS concept antenna – QUAD Modules.doc QM1 • QUAD Modules (QM) • QM1 experiment with profiles • QM2 experiment with flexible edges • QM3 experiment with clamps QM2 QM3 WP. Tile Development

  13. Antenna concept – QUAD ModulesASTRON-RP-XXX_AAVS concept antenna – QUAD Modules.doc QM2 tested; • Mechanical unstable • Bad connection • Possible solution under investigation • Proto Cost per element 25,00 Euro • Final Cost per element 0,80 • QM3 still to be tested WP. Tile Development

  14. AAVP – SKA-NN Housing WP. Tile Development

  15. Housing concept – VacuhouseASTRON-RP-436_AAVS concept housing – Vacuhouse.doc • Parts of 3m x 1.5m possible • Tiles of 3m x 3m possible • ± €180,- / m² possible (for 2000m²) Made by vacuum forming • Limited in size / No continuing antenna • Less integrated features possible • Required module size still unknown • Suitable for small series WP. Tile Development

  16. Housing concept – RotohouseASTRON-RP-437_AAVS concept housing – Rotohouse.doc • Max 4m diameter possible • More detailled features possible • Accuracy of mould • High freedom in design • ± €90,- / m² possible (for 2000m²) • Water gutter integrated • Limited in size / No continuing antenna Made by rotational molding WP. Tile Development

  17. Housing concept – RotohouseASTRON-RP-437_AAVS concept housing – Rotohouse.doc WP. Tile Development

  18. Housing concept – Continuing ArrayASTRON-RP-XXX_AAVS concept housing – ContinuingArray.doc (tbr) • Connects diagonal oriented vivaldis in orthogonal direction • “Infinitely” expandable • Edges can be closed • No corner pieces needed • Assembly in desert required • Smaller unit  more labor Made by injection molding (most parts) WP. Tile Development

  19. Housing concept – Continuing ArrayASTRON-RP-XXX_AAVS concept housing – ContinuingArray.doc (tbr) • Useable for small and large configurations • Water gutter integrated • Support pole also guides water • To be prototyped: beginning 2012 WP. Tile Development

  20. AAVP – SKA-NN Tileand station DESIGN WP. Tile Development

  21. TILE Cover Vivaldi Pole Support Side Combi board Centerboard OCTA board WP. Tile Development

  22. SUPPORT Injection molded makes integration possible; • Features to fix PCBs • Features to fix tiles • Features to fix antennae • Injection molding • PP or ABS WP. Tile Development

  23. CENTRE and COMBIBOARD Centreboard placed, Combiboards attached. Combiboard fixed. WP. Tile Development

  24. OCTABOARDS OCTAboards placed OCTAboard fixed WP. Tile Development

  25. GROUNDPLANE • Pre-shaped groundplane • Features for contact with other tiles • Holes for connectors • Holes for antenna mounting • Lasercut or stamped • Aluminium thin sheet (0,3mm) WP. Tile Development

  26. VIVALDIS Vivaldis placed in groups of four • Lasercut or stamped • Aluminium sheet (less than 1mm) • Clinched in groups of four • Fixed at bottom Vivaldis go through support and are being fixed at the bottom. WP. Tile Development

  27. COVER and POLES Cover placed on top • Injection molding or vacuum forming. • PP or PE Poles to support the cover both when used in the middle of a station or at the edge. Also to close the corners. • Extrusion or injection molding • PP or ABS, perhaps PVC (common in extrusion) WP. Tile Development

  28. (expandable) MODULE • -Injection molding or vacuumforming • PP or PE WP. Tile Development

  29. ARRAY of FOUR CONNECTED Tiles are connected by snap feature. Connection in diagonal direction. WP. Tile Development

  30. STATION Station layout non-continuous • No assembly outdoors • Maintenance / replacement easier • Enough space for water (rain) • Testable units Station layout continuous • All elements connected • Small units • Assembly partly in the field • Replacement almost impossible Both scenarios under investigation WP. Tile Development

  31. Thank you WP. Tile Development

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