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- W2892775897 abstract "We describe the design and architecture of PHAROS2, a cryogenically cooled 4–8 GHz Phased Array Feed (PAF) demonstrator with digital beamformer for radio astronomy application. The instrument will be capable of synthesizing four independent single-polarization beams by combining 24 active elements of an array of Vivaldi antennas. PHAROS2, the upgrade of PHAROS (PHased Arrays for Reflector Observing Systems), features: a) commercial cryogenic LNAs with state-of-the-art performance, b) a “Warm Section” for signal filtering, conditioning and single downconversion to select $text{a}approx 275 text{MHz}$ : Intermediate Frequency (IF) bandwidth within the 4–8 GHz Radio Frequency (RF) band, c) an IF signal transportation by analog WDM (Wavelength Division Mutiplexing) fiber-optic link, and d) a FPGA-based Italian Tile Processing Module (iTPM) digital backend. PHAROS2 will be mounted at the primary focus of the 76-m diameter Lovell radio telescope (Jodrell Bank Observatory, UK) for technical and scientific validation." @default.
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- W2892775897 date "2018-05-01" @default.
- W2892775897 modified "2023-10-16" @default.
- W2892775897 title "Design of PHAROS2 Phased Array Feed" @default.
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- W2892775897 doi "https://doi.org/10.23919/ursi-at-rasc.2018.8471305" @default.
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