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Beating the quantum limit in SIS mixers

Conference · · IEEE Trans. Magn.; (United States)
OSTI ID:6095790
;
A phase-sensitive amplifier is not subject to the same quantum noise restrictions as a phase-intensive amplifier such as a normal SIS mixer. In this paper, the 2LO mixer is analyzed in the low-LO-power limit for a perfect SIS diode. The result is that a 2LO SIS mixer can beat the noise performance of a one-LO mixer by a factor of two. The authors are confident that even lower noise is possible with an SIS when operated in some other way.
Research Organization:
9520245
OSTI ID:
6095790
Report Number(s):
CONF-880812-
Conference Information:
Journal Name: IEEE Trans. Magn.; (United States) Journal Volume: 25:2
Country of Publication:
United States
Language:
English

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Related Subjects

36 MATERIALS SCIENCE
360603* -- Materials-- Properties
42 ENGINEERING
420800 -- Engineering-- Electronic Circuits & Devices-- (-1989)
AMPLIFIERS
EFFICIENCY
ELECTRONIC EQUIPMENT
ELEMENTS
EQUIPMENT
NOISE
PERFORMANCE
QUANTUM EFFICIENCY
SEMICONDUCTOR DEVICES
SEMICONDUCTOR DIODES
SEMIMETALS
SENSITIVITY
SILICON