ASKAP Technologies: Antennas
ASKAP requires low-cost, low-power and low-manpower build antennas on a scale not previously realised. It will be made up of 36 separate 12-metre antennas that will work together as a single instrument. Each of the antennas will be constructed according to the following specifications:
- A prime focus (single reflector) antenna on an az-el mount/drive with a third (polarisation) axis to provide all-sky coverage
- A reflector 12 metres in diameter, unshaped paraboloid with f/D of 0.5 and painted white
- A reflector surface capable of operation to 10 GHz (or better)
More details on the specifications can be found in the ASKAP Antenna Public Specification [60kB PDF].
As a survey telescope, ASKAP must provide a wide field-of-view – 30 square degrees – achieved by using a phased array feed mounted on each antenna. Read more about ASKAP's phased array feeds.
Opportunities for Industry
A request for tender (CSIRO RFT 2008-014) for the design and construction of ASKAP's 36 antennas was issued in March 2008 and results of the process have been posted on the AusTender website. CSIRO placed the contract for the design and construction of ASKAP's antennas with the 54th Research Institute of China Electronics Technology Group Corporation (known as CETC54). Read more on the outcome of the tender process [40kB PDF].Information on other opportunities for industry to be involved in the development of ASKAP can be found on the industry page.
Further Information
- See the three-axis movement of the first ASKAP antenna filmed in June 2010 [41MB .m4v]
- Download a video of the first ASKAP antenna during construction on site in January 2010 [17MB .mov]
- Take a look at the first ASKAP antenna during factory acceptance testing in September 2009 [6.5MB .m4v]
- Watch an animation of ASKAP by Swinburne Astronomy Productions [42MB .mov]
- Read the latest ASKAP Technical Update newsletter