Superconductor bandpass filter having parameters changed by a va

Details Superconductor bandpass filter having parameters changed by a va Superconductor bandpass filter having parameters changed by a va

1995-11-01

1998-06-23

Lee, Benny T.

Superconductor technology: apparatus, material, process

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

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

505701, 505866, 333 99S, 333205, H01P 1203, H01B 1202

Patent

active

057705461

ABSTRACT:
The superconductor bandpass filter for electromagnetic signals includes a substrate (5); striplines (1) made of a type II superconductive material arranged on the substrate and a tuning device (2) for tuning the superconductor bandpass filter consisting of a device for changing a magnetic penetration depth .lambda.(T) of the striplines (1), so as to change the effective length, effective width and effective spacing of the striplines and thus to change the center frequency and/or the bandwidth. The device for changing the magnetic penetration depth .lambda.(T) of the striplines (1) advantageously includes a device for exerting a mechanical force or stress on the striplines and/or a device for varying a magnetic field applied to the striplines.

REFERENCES:
patent: 3857114 (1974-12-01), Minet
Tinkham, M./"Introduction to Superconductivity"/1975/pp. 79-81/Robert Krieger Pub.
Bartlogg, B./Physical Properties . . . /Physics Today, pp. 44-50, Jun. 1991.
Trotel, A. etla./Appl. Phys. Let./Apr. 29, 1996/pp. 2559-2561.

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