NDLI: Millimeterwave tests on passive components of PLANCK-LFI

Content Provider	IEEE Xplore Digital Library
Author	Simonetto, A. D'Arcangelo, O. Figini, L. Sozzi, C. Guzzi, P. Battaglia, P. Villa, F. Sandri, M. Bersanelli, M.
Copyright Year	2004
Description	Author affiliation: IFP, CNR, Milano, Italy (Simonetto, A.; D'Arcangelo, O.; Figini, L.; Sozzi, C.)
Abstract	PLANCK is the ESA mission devoted to cosmic microwave background (CMB) to be launched in 2007. After COBE and WMAP pioneering work, PLANCK is designed to measure the anisotropy spectrum to the full extent of cosmological relevance and make quantitative measurements of CMB polarization. Its optical system consists of a Gregorian telescope coupled with two instruments on the focal surface: the High Frequency Instrument (HFI), an array of bolometers covering the spectral range from 84 GHz to 1 THz; and the Low Frequency Instrument (LFI), an array of pseudo-correlation radiometers spanning the range from 27 to 77 GHz in three 20% frequency bands. We measured vector patterns and return loss of feed horns and S parameters of OMTs and waveguides, obtaining good agreement with the very demanding design specifications.
Sponsorship	Univ. of Karlsruhe Karlsruhe Res. Center
Starting Page	435
Ending Page	436
File Size	161161
Page Count	2
File Format	PDF
ISBN	0780384903
DOI	10.1109/ICIMW.2004.1422150
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-09-27
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Testing Optical arrays Instruments Frequency Anisotropic magnetoresistance Optical polarization Geometrical optics Telescopes Optical coupling Optical surface waves
Content Type	Text
Resource Type	Article

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