Underdamped Josephson transmission line
US6549059B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 23, 2001 |
| Grant date | Apr 15, 2003 |
| Priority date | — |
| Expiry date | Feb 23, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C19/32
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A Josephson junction transmission line (50) for transmitting single flux quantum pulses. The transmission line (50) includes a current source (53), a plurality of isolation inductors (52, 54) electrically coupled in series along the transmission line (50), and a plurality of Josephson junction circuits (60, 70) electrically coupled in parallel along the transmission line (50). Each of the Josephson junction circuits (60, 70) includes only a Josephson junction (62, 72) and a parasitic inductor (64, 74) coupled in series. The Josephson junction circuits (60, 70) do not include a damping resistor in order to reduce timing uncertainty and to enhance propagation speed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.