Title :
Kinetic-inductance coupling scheme for superconducting stripline system and its device applications
Author :
Yoshida, K. ; Kudo, K. ; Hossain, Md S. ; Enpuku, K.
Author_Institution :
Dept. of Electron., Kyushu Univ., Fukuoka, Japan
fDate :
3/1/1991 12:00:00 AM
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
Keywords :
coupled circuits; strip lines; superconducting devices; transmission line theory; coupled-mode theory; device applications; directional couplers; efficient coupling elements; four-port circuit; inductive coupling; kinetic inductance coupling scheme; kinetic inductance of thin superconducting films; microwave analog components; microwave switches; scattering coefficients; stripline coupling; superconducting stripline system; variable filters; Coupling circuits; Directional couplers; Electrodes; Inductance; Kinetic theory; Scattering; Stripline; Superconducting films; Superconducting microwave devices; Switches;
Journal_Title :
Magnetics, IEEE Transactions on
