Experimental Study of an Adding Interferometer at Millimeter Waves

A. Ghribi (1) , A. Tartari (1) , E. Bréelle (1) , J.-C. Hamilton (1) , S. Galli (1) , M. Gervasi , M. Piat (2) , S. Spinelli , M. Zannoni

1 APC (UMR_7164) - AstroParticule et Cosmologie
2 APC - Cosmologie

In order to study an original detection architecture for future cosmology experiments based on wide band adding interferometry, we have tested a single baseline bench instrument based on commercial components. The instrument has been characterized in the laboratory with a wide band power detection setup. A method which allows us to reconstruct the complete transfer function of the interferometer has been developed and validated with measurements. This scheme is useful to propagate the spurious effects of each component till the output of the detector.

Mots clés: Millimeter wave: interferometry; measurements; technology; Astronomy: instrumentation

Domaines: Cosmologie et astrophysique extra-galactique [astro-ph.CO]; Cosmologie et astrophysique extra-galactique [astro-ph.CO]; Instrumentation et méthodes pour l'astrophysique [astro-ph.IM]; Instrumentation et méthodes pour l'astrophysique [astro-ph.IM]

A. Ghribi, A. Tartari, E. Bréelle, J.-C. Hamilton, S. Galli, et al.. Experimental Study of an Adding Interferometer at Millimeter Waves. Journal of Infrared, Millimeter and Terahertz Waves, 2010, 31, pp.88-99. ⟨10.1007/S10762-009-9562-Y⟩. ⟨hal-00735809⟩