Skip to main content
SpringerLink
Log in

A Spherical Lens For The Ska

  • Antennas
  • Published:
Experimental Astronomy Aims and scope Submit manuscript

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.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  • Baker, E. B.: 1951, ‘Dielectric Material’, US Patent 2,716,190.

  • Cornbleet, S.: 1965, Microwave J. 65–68.

  • Gerritsen, H. J. and McKenna, S. J.: 1975, Icarus 26, 250–256.

    Article  Google Scholar 

  • Hall, P. J. (ed.): 2002, http://www.skatelescope.org/documents/SKA_AUS_CONCEPT_Luneburg_17072002.pdf.

  • Maxwell Garnett, J. C.: 1904, ‘Colours in Metal Glasses and Metal Flms’, Trans. of the Royal Society, London, CCIII, pp. 385–420.

  • Sihvola, A.: 1999, ‘Electromagnetic Mixing Formulas and Applications’, IEE Electromagnetic Waves Series 47, IEE.

Download references

Author information

Authors and Affiliations

  1. CSIRO ICT Centre/Australia Telescope National Facility, Radiophysics Laboratory, P.O. Box 76, Epping, NSW, 1710, Australia

    John S. Kot, Nasiha Nikolic & Doug Hayman

  2. CSIRO Manufacturing and Infrastructure Technology, Clayton South, VIC, 3169, Australia

    Richard Donelson

  3. CSIRO Molecular Science, Clayton South, VIC, 3169, Australia

    Mike O’Shea & Gary Peeters

Authors
  1. John S. Kot
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Richard Donelson
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Nasiha Nikolic
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. Doug Hayman
    View author publications

    You can also search for this author in PubMed Google Scholar

  5. Mike O’Shea
    View author publications

    You can also search for this author in PubMed Google Scholar

  6. Gary Peeters
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to John S. Kot.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Kot, J.S., Donelson, R., Nikolic, N. et al. A Spherical Lens For The Ska. Exp Astron 17, 141–148 (2004). https://doi.org/10.1007/s10686-005-0033-8

Download citation

  • Received:

  • Accepted:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10686-005-0033-8

Keywords

Search

Navigation