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Superconductive gigahertz power supply for Josephson multichip systems

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5 Author(s)

To confirm a gigahertz frequency power supply in a multichip system, three-stage superconductive filter-type powering device (SFPD) chips and a resistive load chip for a 500 gate Josephson device were designed and fabricated. Low-loss capacitors required for this gigahertz operation were also developed. The authors tested the operation of the three-stage SFPDs in a multichip configuration with resistive load. A superconductive power supply with frequencies as high as 2.0 GHz was demonstrated in a multichip system for the first time. For a 2.0-GHz SFPD, normal operation was confirmed with a resonant frequency of 2.1 GHz, a resonant level of -31 dB, and a current gain of 22.4. The 0.1- Omega input impedance of the device system was successfully transformed to 49.9 Omega .<>

Published in:

Applied Superconductivity, IEEE Transactions on  (Volume:2 ,  Issue: 1 )

Date of Publication:

March 1992

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