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R&D at Nançay for radio astronomy detectors and systems

Abstract : Nançay radio astronomy station teams are involved in several aspects of the Research and Development (R&D) for radio astronomy detectors and systems: i) Microelectronics: Low Noise Amplifiers (LNA), receiver on chip and system in package. The long-term goal is to provide sub-systems for the future Square Kilometer Array and its Pathfinders. A beamformer chip has been integrated in the FP6 SKADS dense aperture array technology demonstrator EMBRACE. Wide band SiGe LNAs are developed, beamformers with in-chip control are studied and more complex integrated receivers are designed for the european Aperture Array Verification Programme demonstrator. ii) Digital signal processing: EMBRACE beamforming has been implemented in the digital backend and RFI-mitigation oriented signal processing has been designed for realtime systems, including work for FP6 SKADS and FP7 PrepSKA. iii) A study of Phased Array Feeds has started in 2008, in order to study the radio electric properties of PAFs at the focus of large F/D telescopes, such as the Nançay Radio Telescope, as well as to test PAF systems in collaboration with the SPP/IRFU and LAL/IN2P3 laboratories.
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Submitted on : Tuesday, September 21, 2021 - 4:47:53 PM
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S. Bosse, M.-L. Grima, G. Kenfack, C. Viou, P. Picard, et al.. R&D at Nançay for radio astronomy detectors and systems. EAS Publications Series, EDP Sciences, 2009, 37, pp.127-134. ⟨10.1051/eas/0937015⟩. ⟨insu-03350908⟩

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