Patents by Inventor Per Olof Glinder

Per Olof Glinder 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).

  • Waveguide filter with a resonator cavity having inner and outer edges of different lengths
    Patent number: 6181224
    Abstract: A waveguide filter includes one or more resonator cavities which extend between an input to the filter and an output from the filter. Each resonator cavity in the filter has a center line with a chosen extension and a mechanical length. The mechanical length of the center line of each resonator cavity forms one of the parameters that determine the electrical length of the resonator cavity. The filter forms part of a microwave unit. At least one of the resonator cavities of the filter has a curved extension with respect to its center line.
    Type: Grant
    Filed: November 20, 1998
    Date of Patent: January 30, 2001
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventor: Per Olof Glinder