Abstract:A new experimental setup based on a two-stage cryocooler has been developed at INRIM for operation with Josephson arrays. Recently some parts of the setup have been upgraded in order to allow the synthesis of waveforms; in particular, a well suited rigid rf coaxial cable with bandwidth exceeding 30 GHz has been mounted. We describe preliminary results obtained in tests of waveform synthesis with pulse-driven Josephson arrays fabricated at PTB. Unipolar sinewaves at 1.25 kHz and amplitudes ranging up to tens of… Show more
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