Transmission line biased coherent array of Josephson oscillators
Abstract
A coherent array of Josephson oscillators is provided. Individual hysteresis-free Josephson junctions are longitudinally arranged in a gap of a central conductor in a line and have such a spacing as to substantially eliminate quasiparticle interactions. To provide a common frequency of operation, equal and opposite dc voltages are produced in adjacent pairs of the Josephson junctions by an arrangement of interlocking dc SQUID's (Super-conductive Quantum Interference Device) connected to the longitudinal central conductor using microwave bias tees. Phase coherence for the array is provided by a RF current circulating in an inductive feedback path that loops between the ends of the array.
- Publication:
-
Patent Department of the Navy
- Pub Date:
- August 1984
- Bibcode:
- 1984navy.reptU....L
- Keywords:
-
- Arrays;
- Coherent Electromagnetic Radiation;
- Electric Potential;
- Josephson Junctions;
- Oscillators;
- Phase Locked Systems;
- Radio Frequencies;
- Direct Current;
- Frequency Synchronization;
- Hysteresis;
- Microwaves;
- Patents;
- Electronics and Electrical Engineering