... Astrophysics Group . ... SKALA meets LOFAR . ... SKA AAVS0 array . ... SKA Aperture Array in Australia . ... SKALA, designed at the University of Cambridge, was connected to the LOFAR HBA back end in order to perform a series of tests including: antenna pattern measurements using satellite passes, measurement of the spectrum with the active SKALA element, tests of SKALA LNAs stability over time, cross correlation tests with HBA tiles (X and Y polarizations) and beam-forming using SKALA as an HBA...
... The design employs a differential structure. ... The input is adapted to 100 differential, and the outputs use standard Low Voltage Differential Signaling (LVDS). ... T/H SINGLE T/H Single Input T/H Single Output 1.35 0.15 0.2 T/H DIFFERENTIAL Input T/H Output T/H 0.1 1.3 0.05 volts volts Figure 5: Digital part and digital gate 0 1.25 -0.05 -0.1 1.2 Integrated Test System A test system is integrated on chip to evaluate the transmission to the data acquisition card (fig: 7). ...
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Ссылки http://www.mrao.cam.ac.uk/projects/aavp/posters/daSilva_AAVP-Cambridge2010.pdf -- 1772.7 Кб -- 06.12.2010 Похожие документы