Dispersion in Nb microstrip transmission lines at submillimeter wave frequencies
- 30 November 1992
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 61 (22) , 2712-2714
- https://doi.org/10.1063/1.108069
Abstract
We have measured the effects of dispersion on the resonant mode frequencies of open-ended Nb-SiOx-Nb microstrip transmission lines over a frequency range from 50 to 800 GHz. Submicron Nb/Al-AlOx/Nb Josephson junctions were used as both voltage-controlled oscillators and detectors to sample the high order modes of the resonators. The resonator modes are equally spaced up to about 550 GHz where the mode spacing start to decrease gradually to a minimum above the gap frequency fg≊700 GHz and then increases. Results are in good agreement with the expected theoretical behavior based on the Mattis–Bardeen conductivity of the superconductor line.Keywords
This publication has 12 references indexed in Scilit:
- Resonator coupled Josephson junctions; parametric excitations and mutual lockingIEEE Transactions on Magnetics, 1991
- Performance of NbN superconductive tunnel junctions as SIS mixers at 205 GHzIEEE Transactions on Magnetics, 1991
- Josephson-Junction driven submillimeter wave microstrip resonatorIEEE Transactions on Applied Superconductivity, 1991
- A 345GHz SIS receiver for radio astronomyInternational Journal of Infrared and Millimeter Waves, 1989
- MM wave quasioptical SIS mixersIEEE Transactions on Magnetics, 1989
- Dielectric constant of evaporated SiO at frequencies between 13 and 103 GHzIEEE Transactions on Magnetics, 1989
- Subpicosecond optoelectronic study of superconducting transmission linesIEEE Transactions on Magnetics, 1987
- Broad-Band RF Match to a Millimeter-Wave SIS Quasi-Particle MixerIEEE Transactions on Microwave Theory and Techniques, 1985
- Picosecond pulses on superconducting striplinesJournal of Applied Physics, 1978
- Theory of the Anomalous Skin Effect in Normal and Superconducting MetalsPhysical Review B, 1958