Kinetic-inductance coupling scheme for superconducting stripline system and its device applications
Abstract
The properties and applications of the inductive coupling of a superconducting stripline system, which takes advantage of kinetic inductance of thin superconducting films, are studied. The system, composed of two striplines inductively coupled through a common electrode as a four-port circuit, was formulated by obtaining its scattering coefficients in a general form. The system is characterized with the coupled-mode theory. Based on the analysis, it is proposed that a novel type of kinetic inductance devices for microwave analog components, such as directional couplers, microwave switches, variable filters, and efficient coupling elements for striplines. Experiments on stripline coupling with this scheme are also discussed.
- Publication:
-
IEEE Transactions on Magnetics
- Pub Date:
- March 1991
- DOI:
- 10.1109/20.133767
- Bibcode:
- 1991ITM....27.2692Y
- Keywords:
-
- Directional Couplers;
- Electrokinetics;
- Electromagnetic Coupling;
- Inductance;
- Strip Transmission Lines;
- Superconducting Films;
- Microwave Switching;
- Scattering Coefficients;
- Thin Films;
- Electronics and Electrical Engineering