A Spherical Lens For The Ska |
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| Authors: | John S Kot Richard Donelson Nasiha Nikolic Doug Hayman Mike O’Shea Gary Peeters |
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| Institution: | (1) CSIRO ICT Centre/Australia Telescope National Facility, Radiophysics Laboratory, P.O. Box 76, Epping, NSW, 1710, Australia;(2) CSIRO Manufacturing and Infrastructure Technology, Clayton South, VIC, 3169, Australia;(3) CSIRO Molecular Science, Clayton South, VIC, 3169, Australia |
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| 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. |
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| Keywords: | artificial dielectric Luneburg lens Square Kilometre Array (SKA) |
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