Patents by Inventor Olov H. Gladh

Olov H. Gladh 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).

  • Tuning arrangement for combiner filter having dielectric waveguide resonator and coacting tuning capacitance
    Patent number: 5070313
    Abstract: The present invention relates to a tuning arrangement for combiner filters which include a dielectric waveguide resonator (3) and a tuning capacitance (4) coacting therewith. According to the invention, the tuning capacitance (4) has the form of a substantially isosceles acute-angled triangle bent to a circular-cylindrical form with the cylinder axis parallel with the waveguide resonator (4). The apex of the triangle is attached to the center of the opposing side. The cylindrical tuning capacitance (4) can be rotated around the cylinder axis, for tuning the combiner filter.
    Type: Grant
    Filed: November 29, 1990
    Date of Patent: December 3, 1991
    Assignee: Telefonaktiebolaget L M Ericsson
    Inventors: Olov H. Gladh, Leif S. Kagstrom