Patent · US Expired

Superconductor bandpass filter having parameters changed by a variable magnetic penetration depth

US5770546A · kind A · utility

9Cited by

1References

10Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Wolfgang Grothe · Reutlingen, DE
Klaus Voigtlaender · Schallstadt, DE
Matthias Klauda · Erlangen, DE
Claus Schmidt · Regensburg, DE

Key dates

Filing date	Nov 1, 1995
Grant date	Jun 23, 1998
Priority date	—
Expiry date	Nov 1, 2015

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S505/866
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.