Josephson junction mixer using an external local oscillator
- 1 January 1974
- journal article
- Published by EDP Sciences in Revue de Physique Appliquée
- Vol. 9 (1) , 255-262
- https://doi.org/10.1051/rphysap:0197400901025500
Abstract
Mixing experiments on niobium point contacts are reported for conversion from 95 GHz to 140 MHz. The conversion efficiency is less than predicted by the highly damped weak link model. The discrepancy is presumably due to mixing with higher harmonics of the local oscillator. The lowest noise temperature measured was T ~ 100 K which is of the same order as recently reported for cooled Schottky-barrier diodesKeywords
This publication has 11 references indexed in Scilit:
- Analog-computer studies of mixing and parametric effects in Josephson junctionsJournal of Applied Physics, 1973
- rf impedance of superconducting weak linksJournal of Applied Physics, 1973
- Cryogenic cooling of mixers for millimeter and centimeter wavelengthsIEEE Journal of Solid-State Circuits, 1973
- High-Frequency Response of Josephson Point ContactsJournal of Applied Physics, 1972
- Influence of Microwave Radiation on Current-Voltage Characteristic of Superconducting Weak LinksJournal of Applied Physics, 1972
- Linewidth of the Radiation Emitted by a Josephson Point ContactApplied Physics Letters, 1971
- Microwave mixer and detector diodesProceedings of the IEEE, 1971
- SHOT NOISE IN JOSEPHSON POINT CONTACTSApplied Physics Letters, 1970
- Noise in the ac Josephson EffectPhysical Review B, 1969
- Noise Figure and Conversion Loss of the Schottky Barrier Mixer DiodeIEEE Transactions on Microwave Theory and Techniques, 1967