Superconducting microwave filter

Details Superconducting microwave filter Superconducting microwave filter

1989-07-28

1991-02-26

Laroche, Eugene R.

Superconductor technology: apparatus, material, process

High temperature , per se

Having tc greater than or equal to 150 k

333202, 333227, 333995, 505854, 505866, H01B 1200, H01P 120

Patent

active

049961888

ABSTRACT:
A microwave cavity filter using resonators of superconducting coatings, one-half wavelength long on quartz tubes mounted within the cavity that carry refrigerant to cool the superconductor substantially reduces ohmic losses and permits shrinking the size of conventional cavity filters.

REFERENCES:
patent: 3818390 (1974-06-01), Gikow et al.
patent: 4215327 (1980-07-01), McCrea
patent: 4857360 (1989-08-01), Halbritter et al.
patent: 4872086 (1989-10-01), Huang et al.
Zahopoulos et al, "Performance of a Fully Superconducting Microwave Cavity . . . YiBa.sub.2 Cu.sub.3 O.sub.7 ", Appl. Phys. Lett. vol. 52, No. 25, Jun. 20, 1988, pp. 2168-2170.
Septier et al, "Microwave Application of Superconducting Materials", Jour. of Physics, vol. 10, 1977, pp. 1193-1207.
Delayen et al, "rf Properties of an Oxide-Superconductor Half-Wave Resonant Line", Appl. Phys. Lett. vol. 52, No. 11, Mar. 14, 1988, pp. 930-932.

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