A Spherical Lens for the SKA

  • John S. Kot
  • Richard Donelson
  • Nasiha Nikolic
  • Doug Hayman
  • Mike O’shea
  • Gary Peeters
Chapter

Abstract

Spherical refracting lenses based upon the Luneburg lens offer unique capabilities for radioastronomy, but the large diameter of lens required for the Square Kilometre Array (SKA) means that traditional lens materials are either too dense or too lossy. We are investigating a composite dielectric that theoretically offers extremely low loss and low density, and is suitable for low-cost mass production. We describe our progress towards realising this material and demonstrating the manufacturing concept, via the manufacture and testing of a small (0.9 m) spherical lens.

Keywords

artificial dielectric Luneburg lens Square Kilometre Array (SKA) 

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References

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Copyright information

© Springer 2005

Authors and Affiliations

  • John S. Kot
    • 1
  • Richard Donelson
    • 2
  • Nasiha Nikolic
    • 1
  • Doug Hayman
    • 1
  • Mike O’shea
    • 3
  • Gary Peeters
    • 3
  1. 1.CSIRO ICT Centre/Australia Telescope National FacilityRadiophysics LaboratoryEppingAustralia
  2. 2.CSIRO Manufacturing and Infrastructure TechnologyClayton SouthAustralia
  3. 3.CSIRO Molecular ScienceClayton SouthAustralia

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