Properties of degenerate two-frequency Josephson-junction parametric amplifiers with external pumping
Abstract
The signal and noise properties of degenerate two-frequency externally pumped Josephson-junction parametric amplifiers are calculated. Operation using the first harmonic of the pump frequency is examined as well as operation using doubling of the pump frequency. Conditions under which the open-circuit regime can be realized with respect to combinational frequencies and harmonics of the pumping are examined. In both cases the amplifier is found to have a low noise temperature.
- Publication:
-
Radiotekhnika i Elektronika
- Pub Date:
- October 1980
- Bibcode:
- 1980RaEl...25.2204K
- Keywords:
-
- Josephson Junctions;
- Microwave Amplifiers;
- Parametric Amplifiers;
- Signal Analysis;
- Asymptotic Methods;
- Harmonic Generations;
- Noise Temperature;
- Pumping;
- Wave Generation;
- Electronics and Electrical Engineering