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Author van't Klooster, K.; Myasnikova, S. E.; Parshin, V. V.; Kasparek, W.
Title Results of reflection loss measurements of sample material for radio astronomy telescope antenna for Planck Project Type Conference Article
Year 2004 Publication Proc. 14th international crimean conference on microwave and telecommunication technology Abbreviated Journal
Volume Issue Pages (down) 753-755
Keywords mirror, reflection index, emissivity, Fabry-Perot interferometer, space observatory, terahertz, THz
Abstract Advanced radio telescope antennas for space applications are realised by the use of stable composite materials, which are lighter in general than various metal realisations. Reflectivity measurements have been carried out on high technology samples for the Planck radio telescope. Highly accurate results have been obtained at the Applied Physics Institute in Nizhny Novgorod, and an independent measurement with a totally different setup at the University of Stuttgart confirmed that one of the samples showed a strange behaviour. Moreover, it confirmed the high accuracy of the testing method.
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Call Number Serial 579
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Author Myasnikova, S. E.; Parshin, V.V.; van't Klooster, K.; Valsecchi, G.
Title Reflectivity of antenna and mirrors reflectors at 110 and 200 GHz Type Conference Article
Year 2003 Publication Proc. 4th international conference on antenna theory and techniques Abbreviated Journal
Volume 2 Issue Pages (down) 624- 627
Keywords mirror, reflection index, emissivity, reflectivity, mirror, Fabry-Perot interferometer, subterahertz, subTHz
Abstract Reflectivity (reflection loss) investigations of nickel samples with different types of surface finish, with and without rhodium coating, have been carried out in the 110-200 GHz frequency range on an installation developed in the Applied Physics Institute of Russia. The reflectivity measurements of high quality silver coated and gold coated mirrors are also presented. The reflectivity (reflection loss) investigations of some carbon fibre samples with and without aluminium coating have been made. Results are interesting, in view of the anisotropy of the carbon fibre material.
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Call Number Serial 582
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