Dual mode planar superconductive resonator and filter including

Details Dual mode planar superconductive resonator and filter including Dual mode planar superconductive resonator and filter including

1995-11-01

1998-02-24

Lee, Benny T.

Superconductor technology: apparatus, material, process

High temperature devices, systems, apparatus, com- ponents,...

High frequency waveguides, resonators, electrical networks,...

505190, 505701, 505702, 505866, 333 99S, 333205, 333219, H01P 1203, H01P 708, H01L 3922

Patent

active

057211957

ABSTRACT:
The planar superconducting resonator includes a substrate (1), a symmetrically shaped stripline (2) applied to the substrate (1) in which two orthogonal electromagnetic modes are excitable and including a symmetry perturbation for coupling the two orthogonal electromagnetic modes, an additional stripline (5) arranged on the substrate in the vicinity of the symmetry perturbation, a Josephson junction (3) arranged between the symmetry perturbation and the additional stripline (5) and a device for generating and controlling a magnetic field at the Josephson junction (3) so that the degree of coupling between the two orthogonal electromagnetic modes is varied. The Josephson junction (3) is formed by a non-superconducting layer (4) arranged between the symmetry perturbation and the additional stripline (5).

REFERENCES:
patent: 3663902 (1972-05-01), Deutscher
patent: 5065096 (1991-11-01), Muck et al.
Soviet Physics Technical Physics, Bd. 25, Nr. 4, Apr. 1980 New York, US, Title: "Excitation of a Superconducting Strip Resonator by a System of Josephson Contacts" by S.I. Zub, pp. 512-514.
1991 IEEE MTT-S Digest, Curtis, et al, "Miniature Dual Mode Microstrip Filters", pp. 443 -446.
W. Buckel, Supraleitung, 1993, VCH-Verlag, 4th Edition, pp. 72-92.

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