Patents by Inventor Attila Weiser, Jr.

Attila Weiser, Jr. 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).

  • Superconductive planar radio frequency filter having resonators with folded legs
    Patent number: 6122533
    Abstract: A planar filter for performing signal filtering at radio frequencies is provided. The planar filter can include asymmetrical resonators, wherein each resonator is asymmetrical about a longitudinal center axis through the resonator. In addition, the resonators can be grouped in coupled pairs such that the resonators in each coupled pair are asymmetrical about a longitudinal center axis between the paired resonators. In addition, a coupling structure is provided that includes both distributed coupling and tapped coupling to a resonator. Further, a bandstop filter device is provided that includes coupling between resonators in the filter.
    Type: Grant
    Filed: June 27, 1997
    Date of Patent: September 19, 2000
    Assignee: Spectral Solutions, Inc.
    Inventors: Zhihang Zhang, Attila Weiser, Jr., Jonathan Raymond Scupin, Linda D'Evelyn
  • Electrically tunable microwave filters
    Patent number: 5990766
    Abstract: The tunable filters of the present invention incorporate tunable dielectric materials (e.g., bulk and thin film ferroelectric and paraelectric materials) in contact with segments of resonators that are at an RF voltage maximum to alter the pass band or stop band characteristic of an RF signal outputted by the filter. The biasing circuitry in contact with the tunable dielectric material can include components for inhibiting or retarding the coupling of RF energy to the biasing circuit.
    Type: Grant
    Filed: June 27, 1997
    Date of Patent: November 23, 1999
    Assignee: Superconducting Core Technologies, Inc.
    Inventors: Zhihang Zhang, Attila Weiser, Jr.