Patents by Inventor Erland Wikborg

Erland Wikborg has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Arrangement and method relating to filtering of signals
    Patent number: 6111485
    Abstract: A superconducting notch or band reject filter arrangement includes a superconducting dielectric resonator and a waveguide arrangement including a microstrip line to which the resonator is connected. The resonator is a parallel-plate resonator with a chip of a non-linear dielectric material device on which superconductors are arranged and the waveguide arrangement includes a contact device or a coupling device, the resonator being connected to the contact device of the waveguide arrangement in such a way that electric contact is provided, and the filter arrangement is frequency tuneable. Through the arrangement, the insertion losses are low.
    Type: Grant
    Filed: June 18, 1998
    Date of Patent: August 29, 2000
    Assignee: Telefonaktiebolaget LM Ericsson
    Inventors: Erik Carlsson, Spartak Gevorgian, Erik Kollberg, Peter Linner, Erland Wikborg
  • Device and method providing weak links in a superconducting film and device comprising weak links
    Patent number: 5831279
    Abstract: A device with weak links (Josephson junctions) in a superconducting film has two single crystals connected through an interconnecting arrangement that may have one or more sublayers. At least two grain boundaries or at least one barrier are/is formed in the substrate.
    Type: Grant
    Filed: May 3, 1995
    Date of Patent: November 3, 1998
    Assignee: Telefonktiebolaget LM Ericsson
    Inventors: Erland Wikborg, Evgeni Stepantsov, Zdravko Ivanov, Tord Claeson