Quantum noise studies with superconducting tunnel junction mixers. Final report, 15 March 1990-14 March 1993
Technical Report
·
OSTI ID:5648199
The authors have completed their theoretical and experimental investigations of the noise properties of superconducting tunnel junction (SIS) mixers operated as both a phase insensitive linear amplifier and as a phase sensitive linear amplifier. They proposed a technique by which a SIS mixer could be operated as a phase sensitive linear amplifier, i.e., the gain and noise temperature of the amplifier are a function of the phase of the incoming signal. In this technique two phase coherent local oscillators at different frequencies are combined in the mixer simultaneously so both a phase preserving and phase conjugating mixing process occur resulting in a phase sensitive mixer.
- Research Organization:
- Rochester Univ., NY (United States). Dept. of Electrical Engineering
- OSTI ID:
- 5648199
- Report Number(s):
- AD-A-270897/2/XAB; CNN: AFOSR-90-0231
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
42 ENGINEERING
420400* -- Engineering-- Heat Transfer & Fluid Flow
665412 -- Superconducting Devices-- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
AMPLIFIERS
DATA
ELECTRONIC EQUIPMENT
EQUIPMENT
EXPERIMENTAL DATA
FREQUENCY MIXING
INFORMATION
JUNCTIONS
NOISE
NUMERICAL DATA
OSCILLATORS
QUANTUM ELECTRONICS
SUPERCONDUCTING JUNCTIONS
THEORETICAL DATA
TUNNEL EFFECT
420400* -- Engineering-- Heat Transfer & Fluid Flow
665412 -- Superconducting Devices-- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
AMPLIFIERS
DATA
ELECTRONIC EQUIPMENT
EQUIPMENT
EXPERIMENTAL DATA
FREQUENCY MIXING
INFORMATION
JUNCTIONS
NOISE
NUMERICAL DATA
OSCILLATORS
QUANTUM ELECTRONICS
SUPERCONDUCTING JUNCTIONS
THEORETICAL DATA
TUNNEL EFFECT