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Satellite antenna measurement at 322 GHz using a computer-generated hologram as the focusing element

Authors :
Ala-Laurinaho, Juha
Häkli, Janne
Koskinen, Tomi
Lönnqvist, Anne
Mallat, Juha
Räisänen, Antti V.
Ranvier, Sylvain
Säily, Jussi
Tuovinen, Jussi
Viikari, Ville
Narayanan, Gopal
Source :
Ala-Laurinaho, J, Häkli, J, Koskinen, T, Lönnqvist, A, Mallat, J, Räisänen, A V, Ranvier, S, Säily, J, Tuovinen, J & Viikari, V 2004, Satellite antenna measurement at 322 GHz using a computer-generated hologram as the focusing element . in G Narayanan (ed.), Proceedings of the 15th International Symposium on Space THz Technology . University of Massachusetts at Amherst, pp. 414-417, 15th International Symposium on Space Terahertz Technology, ISSTT 2004, Northampton, Massachusetts, United States, 27/04/04 . < https://www.nrao.edu/meetings/isstt/papers/2004/2004414417.pdf >
Publication Year :
2004
Publisher :
University of Massachusetts at Amherst, 2004.

Abstract

Computer-generated holograms can be applied in space terahertz technology; they are particularly suitable as focusing elements in compact test ranges, for example, in testing of high-gain antennas and measuring radar cross section (RCS) of scaled models. Radio holograms have also been demonstrated in other millimeter- and submillimeter-wave beam-shaping applications, such as the creation of non-diffracting mm-wave Bessel beams, mm-wave vortices, and custom-designed beam patterns. During summer 2003 we built a temporary measuring facility at the High Voltage Institute of the Helsinki University of Technology to test the ADMIRALS antenna built by EADS Astrium. The measurement results obtained at 322 GHz are so promising that we are currently proposing a hologram CATR test for the Planck telescope at 500 GHz.

Subjects

Subjects :
antenna measurement
satellite anatennas
submillimeter waves
hologram

Details

Language :
English
Database :
OpenAIRE
Journal :
Ala-Laurinaho, J, H&#228;kli, J, Koskinen, T, L&#246;nnqvist, A, Mallat, J, R&#228;is&#228;nen, A V, Ranvier, S, S&#228;ily, J, Tuovinen, J &amp; Viikari, V 2004, Satellite antenna measurement at 322 GHz using a computer-generated hologram as the focusing element . in G Narayanan (ed.), Proceedings of the 15th International Symposium on Space THz Technology . University of Massachusetts at Amherst, pp. 414-417, 15th International Symposium on Space Terahertz Technology, ISSTT 2004, Northampton, Massachusetts, United States, 27/04/04 . < https://www.nrao.edu/meetings/isstt/papers/2004/2004414417.pdf >
Accession number :
edsair.355e65625b88..22b5165568e3d0d3c74a1bdd805b2bf5

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