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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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