Effects of quasi-optical components on feed-horn co- and cross-polarisation radiation patterns

Maffei, B., Pisano, G., Haynes, Vic and Ade, Peter A. R. ORCID: https://orcid.org/0000-0002-5127-0401 2008. Effects of quasi-optical components on feed-horn co- and cross-polarisation radiation patterns. Presented at: Millimeter and Submillimeter Detectors and Instrumentation for Astronomy IV, Marseilles, France, 26 June 2008. Published in: Duncan, William D., Holland, Wayne S.., Withington, Stafford and Zmuidzinas, Jonas eds. Proc. SPIE. , vol.7020 SPIE, 70202H. 10.1117/12.789571

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Abstract

Astrophysical experiments dedicated to the study of the Cosmic Microwave Background are in needs of very welldefined beam shape in order to get an accurate re-construction of the anisotropies power spectrum. These beams have tobe carefully designed, but also properly characterised. Some of these instruments will be located in a cryostat for whichfilters and windows are necessary, and the effects of these additional optical components on the beam shape need to betaken into account. We present here, measurements of such effects on the co- and cross-polarisation radiation patterns ofcorrugated horns using a Vector Network Analyser

Item Type:	Conference or Workshop Item (Poster)
Date Type:	Publication
Status:	Published
Schools:	Physics and Astronomy
Subjects:	Q Science > QC Physics
Publisher:	SPIE
ISSN:	0277-786X
Last Modified:	21 Oct 2022 08:45
URI:	https://orca.cardiff.ac.uk/id/eprint/34287

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