Moseley, P;
Savini, G;
Ade, P;
(2018)
Large aperture metal-mesh lenses for THz astronomy.
In:
Proceedings of the 12th European Conference on Antennas and Propagation (EuCAP 2018).
IET
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Abstract
In this paper we present preliminary results of a metal-mesh graded index Fresnel lens. The designed lens has a diameter of 300 mm, a focal length of 1050mm and operates from 70 to 300 GHz. It was not possible to directly scale the design of the previous lenses, so a Fresnel graded index was used. A new testing facility was developed and verified, which allowed us to show that the new lens matches the same performance of a traditional polyethylene lens. Lenses of this diameter are of interest in the astronomy instrumentation community.
| Type: | Proceedings paper |
|---|---|
| Title: | Large aperture metal-mesh lenses for THz astronomy |
| Event: | 12th European Conference on Antennas and Propagation (EuCAP 2018) |
| Location: | London, UK |
| Dates: | 9th-13th April 2018 |
| ISBN-13: | 978-1-78561-816-1 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1049/cp.2018.0604 |
| Publisher version: | https://doi.org/10.1049/cp.2018.0604 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | GRIN Lens, Metamaterials, THz Astronomy |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10069506 |
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